CINXE.COM
Piidioksidi – Wikipedia
<!DOCTYPE html> <html class="client-nojs" lang="fi" dir="ltr"> <head> <meta charset="UTF-8"> <title>Piidioksidi – Wikipedia</title> <script>(function(){var className="client-js";var cookie=document.cookie.match(/(?:^|; )fiwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":[",\t."," \t,"],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"fi normal","wgMonthNames":["","tammikuu","helmikuu","maaliskuu","huhtikuu","toukokuu","kesäkuu","heinäkuu","elokuu","syyskuu","lokakuu","marraskuu","joulukuu"],"wgRequestId":"99cb6d4f-5701-45d2-9273-7f126d03d05a","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Piidioksidi","wgTitle":"Piidioksidi","wgCurRevisionId":21850033,"wgRevisionId":21850033,"wgArticleId":360950,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null, "wgUserGroups":["*"],"wgCategories":["Matematiikkaan, fysiikkaan tai kemiaan liittyvät artikkelit","Kemiatyngät","Seulonnan keskeiset artikkelit","Oksidit","Piiyhdisteet","Puolimetalliyhdisteet"],"wgPageViewLanguage":"fi","wgPageContentLanguage":"fi","wgPageContentModel":"wikitext","wgRelevantPageName":"Piidioksidi","wgRelevantArticleId":360950,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgFlaggedRevsParams":{"tags":{"accuracy":{"levels":3}}},"wgStableRevisionId":21850033,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"fi","pageLanguageDir":"ltr","pageVariantFallbacks":"fi"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":5000,"wgRelatedArticlesCompat":[], "wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":true,"wgVector2022LanguageInHeader":false,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q116269","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.gadget.hidePersonalSandboxEdits":"ready","ext.gadget.fiwiki_flaggedrevs_css_rcfix":"ready","ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.vector.styles.legacy":"ready","ext.flaggedRevs.basic":"ready","mediawiki.codex.messagebox.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript": "ready","codex-search-styles":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","site","mediawiki.page.ready","skins.vector.legacy.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.flaggedRevs.advanced","ext.gadget.publicarttablesort","ext.gadget.ViikonKilpailu","ext.gadget.WikiLovesMonunmets","ext.gadget.ProtectionIndicator","ext.gadget.frwiki_infobox_v3","ext.gadget.linkeddata","ext.gadget.perustiedotwikidatassa","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.compactlinks","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","oojs-ui.styles.icons-media","oojs-ui-core.icons", "wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=fi&modules=codex-search-styles%7Cext.cite.styles%7Cext.flaggedRevs.basic%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cmediawiki.codex.messagebox.styles%7Cskins.vector.styles.legacy%7Cwikibase.client.init&only=styles&skin=vector"> <script async="" src="/w/load.php?lang=fi&modules=startup&only=scripts&raw=1&skin=vector"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=fi&modules=ext.gadget.fiwiki_flaggedrevs_css_rcfix%2ChidePersonalSandboxEdits&only=styles&skin=vector"> <link rel="stylesheet" href="/w/load.php?lang=fi&modules=site.styles&only=styles&skin=vector"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Sample_of_silicon_dioxide.jpg/1200px-Sample_of_silicon_dioxide.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="1452"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Sample_of_silicon_dioxide.jpg/800px-Sample_of_silicon_dioxide.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="968"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Sample_of_silicon_dioxide.jpg/640px-Sample_of_silicon_dioxide.jpg"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="775"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Piidioksidi – Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//fi.m.wikipedia.org/wiki/Piidioksidi"> <link rel="alternate" type="application/x-wiki" title="Muokkaa" href="/w/index.php?title=Piidioksidi&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (fi)"> <link rel="EditURI" type="application/rsd+xml" href="//fi.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://fi.wikipedia.org/wiki/Piidioksidi"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.fi"> <link rel="alternate" type="application/atom+xml" title="Wikipedia-Atom-syöte" href="/w/index.php?title=Toiminnot:Tuoreet_muutokset&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin-vector-legacy mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Piidioksidi rootpage-Piidioksidi skin-vector action-view"><div id="mw-page-base" class="noprint"></div> <div id="mw-head-base" class="noprint"></div> <div id="content" class="mw-body" role="main"> <a id="top"></a> <div id="siteNotice"><!-- CentralNotice --></div> <div class="mw-indicators"> </div> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Piidioksidi</span></h1> <div id="bodyContent" class="vector-body"> <div id="siteSub" class="noprint">Wikipediasta</div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="contentSub2"></div> <div id="jump-to-nav"></div> <a class="mw-jump-link" href="#mw-head">Siirry navigaatioon</a> <a class="mw-jump-link" href="#searchInput">Siirry hakuun</a> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="fi" dir="ltr"><table class="infobox" border="0" cellspacing="0" cellpadding="2" style="font-size:92%;font-size: 0.9em; border-collapse: collapse; width: 22em; border-collapse: collapse; width: 22em;"> <tbody><tr><th class="" colspan="2" style="text-align:center; font-size:15px; border-bottom: 1px solid #AAAAAA; background-color: #B2DFB2; color: #000000; font-size:large;">Piidioksidi</th> </tr> <tr><td class="" colspan="2" style="text-align: center; line-height:1.4; border-top: 1px solid #AAAAAA; border-bottom: 1px solid #AAAAAA;"><span typeof="mw:File"><a href="/wiki/Tiedosto:Sample_of_silicon_dioxide.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Sample_of_silicon_dioxide.jpg/275px-Sample_of_silicon_dioxide.jpg" decoding="async" width="275" height="333" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Sample_of_silicon_dioxide.jpg/413px-Sample_of_silicon_dioxide.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Sample_of_silicon_dioxide.jpg/550px-Sample_of_silicon_dioxide.jpg 2x" data-file-width="1925" data-file-height="2330" /></a></span></td> </tr> <tr><th class="" colspan="2" style="text-align:center; border-top: 1px solid #AAAAAA; border-bottom: 1px solid #AAAAAA; background-color: #B2DFB2; color: #000000; ;">Tunnisteet</th> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;"><a href="/wiki/CAS-numero" title="CAS-numero">CAS-numero</a></td> <td class="" colspan="1" style="vertical-align: top;"> <span class="reflink plainlinksneverexpand"><a rel="nofollow" class="external text" href="https://commonchemistry.cas.org/detail?cas_rn=7631-86-9">7631-86-9</a></span></td> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;"><a href="/wiki/PubChem" title="PubChem">PubChem</a> CID</td> <td class="" colspan="1" style="vertical-align: top;"> <span class="reflink plainlinksneverexpand"><a rel="nofollow" class="external text" href="https://pubchem.ncbi.nlm.nih.gov/compound/24261">24261</a></span></td> </tr> <tr><th class="" colspan="2" style="text-align:center; border-top: 1px solid #AAAAAA; border-bottom: 1px solid #AAAAAA; background-color: #B2DFB2; color: #000000; ;">Ominaisuudet</th> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;"><a href="/wiki/Kemiallinen_kaava" title="Kemiallinen kaava">Molekyylikaava</a></td> <td class="" colspan="1" style="vertical-align: top;"> SiO<sub>2</sub></td> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;"><a href="/wiki/Moolimassa" title="Moolimassa">Moolimassa</a></td> <td class="" colspan="1" style="vertical-align: top;"> 60,08</td> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;">Ulkomuoto</td> <td class="" colspan="1" style="vertical-align: top;"> Valkoinen jauhe</td> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;"><a href="/wiki/Sulamispiste" title="Sulamispiste">Sulamispiste</a></td> <td class="" colspan="1" style="vertical-align: top;"> 1 600–1 725 °C</td> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;"><a href="/wiki/Kiehumispiste" title="Kiehumispiste">Kiehumispiste</a></td> <td class="" colspan="1" style="vertical-align: top;"> 2 230 °C</td> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;"><a href="/wiki/Tiheys" title="Tiheys">Tiheys</a></td> <td class="" colspan="1" style="vertical-align: top;"> 2,648 g/cm<sup>3</sup></td> </tr> <tr><td class="" colspan="1" style="vertical-align: top; font-weight:bold;"><a href="/wiki/Liukoisuus" title="Liukoisuus">Liukoisuus</a> veteen</td> <td class="" colspan="1" style="vertical-align: top;"> Ei liukene veteen</td> </tr><tr class="infobox_tests" style="display:none"><td><span class="wd_tests"><a class="external text" href="https://tools.wmflabs.org/fiwiki-tools/testit/INFOBOX/OK">Infobox OK</a></span></td></tr> </tbody></table> <p><b>Piidioksidi</b> eli <b>silika</b> (SiO<sub>2</sub>) on <a href="/wiki/Pii_(alkuaine)" title="Pii (alkuaine)">piin</a> ja <a href="/wiki/Happi" title="Happi">hapen</a> yhdiste. <a href="/wiki/Mineraali" title="Mineraali">Mineraalina</a> se tunnetaan nimellä <a href="/wiki/Kvartsi" title="Kvartsi">kvartsi</a>. </p><p>Piidioksidi esiintyy luonnossa kolmessa kidemuodossa: heksagonaalinen <a href="/wiki/Kvartsi" title="Kvartsi">kvartsi</a>, kuutiollinen <a href="/w/index.php?title=Kristobaliitti&action=edit&redlink=1" class="new" title="Kristobaliitti (sivua ei ole)">kristobaliitti</a> ja heksagonaalinen <a href="/wiki/Tridymiitti" title="Tridymiitti">tridymiitti</a>. Lisäksi tunnetaan kolme muuta muotoa: <a href="/w/index.php?title=Keatiitti&action=edit&redlink=1" class="new" title="Keatiitti (sivua ei ole)">keatiitti</a>, <a href="/w/index.php?title=Koesiitti&action=edit&redlink=1" class="new" title="Koesiitti (sivua ei ole)">koesiitti</a> ja <a href="/w/index.php?title=Stishoviitti&action=edit&redlink=1" class="new" title="Stishoviitti (sivua ei ole)">stishoviitti</a>. Kvartsikide voi olla oikea- tai vasenkätinen, ja eri muodot kääntävät valon <a href="/wiki/Polarisaatio" title="Polarisaatio">polarisaatiosuuntaa</a> eri tavalla. Piidioksidi on varsin kovaa ainetta, ja sitä voi käyttää <a href="/wiki/Hionta" title="Hionta">hionnassa</a>. <a href="/wiki/Mohsin_kovuus" title="Mohsin kovuus">Mohsin kovuusasteikossa</a> sen <a href="/wiki/Kovuus" title="Kovuus">kovuus</a> on 7. </p><p>Piidioksidia käytetään elintarviketeollisuudessa <a href="/wiki/Paakkuuntumisenestoaine" title="Paakkuuntumisenestoaine">paakkuuntumisenestoaineena</a>. Sen <a href="/wiki/E-koodi" title="E-koodi">E-koodi</a> on E551.<sup id="cite_ref-Ruokavirasto.Piidioksidi_1-0" class="reference"><a href="#cite_note-Ruokavirasto.Piidioksidi-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Jos piidioksidikide kuumennetaan sulamispisteeseen (noin 1 600 °C) ja sulan annetaan jäähtyä, syntyy amorfista piidioksidia eli silikalasia (<a href="/wiki/Englannin_kieli" title="Englannin kieli">engl.</a> <i>fused quartz</i>). Silikalasilla on hyvin pieni <a href="/wiki/L%C3%A4mp%C3%B6laajenemiskerroin" class="mw-redirect" title="Lämpölaajenemiskerroin">lämpölaajenemiskerroin</a> ja siksi sitä käytetään kuumennusta kestävien lasiesineiden valmistukseen. Piidioksidi on <a href="/wiki/Silikaatti" class="mw-disambig" title="Silikaatti">silikaattien</a> ohella tavallisen <a href="/wiki/Lasi" title="Lasi">lasin</a> pääasiallinen materiaali. </p><p><b>Silikageeli</b> on vesilasista eli <a href="/wiki/Natriumsilikaatti" class="mw-redirect" title="Natriumsilikaatti">natriumsilikaatista</a> valmistettua huokoista piidioksidin ja <a href="/wiki/Piihappo" title="Piihappo">piihappojen</a> seosta, jota käytetään kosteutta sitovana aineena. Sitä käytetään myös elintarvikelisäaineena vähentämään vaahtoamista. Mikropiireissä hapetettu pii on tehokas <a href="/wiki/Eriste" class="mw-disambig" title="Eriste">eriste</a>. </p><p><b>Mikrosilika</b> on erittäin hienojakoista <a href="/wiki/Amorfinen_aine" title="Amorfinen aine">amorfista</a> piidioksidia, jota käytetään <a href="/wiki/Betoni" title="Betoni">betonin</a> täyte- ja lujiteaineena. Se koostuu noin 0,1 <a href="/wiki/Mikroni" class="mw-redirect mw-disambig" title="Mikroni">mikronin</a> kokoisista hiukkasista, joiden hienous on 50-kertainen normaalin <a href="/wiki/Sementti" title="Sementti">sementin</a> ominaispinta-alaan verrattuna.<sup id="cite_ref-Semtu.microsilica_2-0" class="reference"><a href="#cite_note-Semtu.microsilica-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Kidemuodot">Kidemuodot</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Piidioksidi&veaction=edit&section=1" title="Muokkaa osiota Kidemuodot" class="mw-editsection-visualeditor"><span>muokkaa</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Piidioksidi&action=edit&section=1" title="Muokkaa osion lähdekoodia: Kidemuodot"><span>muokkaa wikitekstiä</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Kemiallisesti yksinkertainen piidioksidi esiintyy useana <a href="/wiki/Polymorfia" title="Polymorfia">polymorfina</a>, joilla on sama kemiallinen koostumus, mutta erilainen kiderakenne ja erilaiset fysikaaliset ominaisuudet. Polymorfit on esitelty seuraavassa taulukossa. </p> <table class="wikitable"> <caption>Piidioksidin kidemuodot </caption> <tbody><tr> <th>Nimi </th> <th>Kidejärjestelmä </th> <th>Tiheys<br />(g/cm<sup>3</sup>) </th> <th>Huomioita </th> <th>Rakenne </th></tr> <tr> <td>α-kvartsi </td> <td>romboedrinen </td> <td>2.648 </td> <td>α-kvartsi muuntuu β-kvartsiksi 846 K (573 °C) lämpötilassa </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:A-quartz.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/A-quartz.png/100px-A-quartz.png" decoding="async" width="100" height="91" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/53/A-quartz.png/150px-A-quartz.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/53/A-quartz.png/200px-A-quartz.png 2x" data-file-width="618" data-file-height="561" /></a></span> </td></tr> <tr> <td>β-kvartsi </td> <td>heksagoninen </td> <td>2.533 </td> <td>β-kvartsi muuttuu β-tridymiitiksi 1140 K (867 °C) lämpötilassa </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:B-quartz.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/12/B-quartz.png/100px-B-quartz.png" decoding="async" width="100" height="115" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/12/B-quartz.png/150px-B-quartz.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/12/B-quartz.png/200px-B-quartz.png 2x" data-file-width="518" data-file-height="596" /></a></span> </td></tr> <tr> <td>α-tridymiitti </td> <td>rombinen </td> <td>2.265 </td> <td><a href="/wiki/Metastabiili" class="mw-redirect" title="Metastabiili">metastabiili</a> </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:A-tridymite.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/32/A-tridymite.png/100px-A-tridymite.png" decoding="async" width="100" height="116" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/32/A-tridymite.png/150px-A-tridymite.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/32/A-tridymite.png/200px-A-tridymite.png 2x" data-file-width="538" data-file-height="622" /></a></span> </td></tr> <tr> <td>β-tridymiitti </td> <td>heksagoninen </td> <td> </td> <td>β-tridymiitti muuttuu β-kristobaliitiksi 2010 K (1737 °C) lämpötilassa </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:B-tridymite.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f7/B-tridymite.png/100px-B-tridymite.png" decoding="async" width="100" height="66" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f7/B-tridymite.png/150px-B-tridymite.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f7/B-tridymite.png/200px-B-tridymite.png 2x" data-file-width="826" data-file-height="545" /></a></span> </td></tr> <tr> <td>α-kristobaliitti </td> <td>tetragoninen </td> <td>2.334 </td> <td>metastabiili </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:A-cristobalite.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/A-cristobalite.png/100px-A-cristobalite.png" decoding="async" width="100" height="93" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/A-cristobalite.png/150px-A-cristobalite.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/A-cristobalite.png/200px-A-cristobalite.png 2x" data-file-width="678" data-file-height="631" /></a></span> </td></tr> <tr> <td>β-kristobaliitti </td> <td>kuutiollinen </td> <td> </td> <td>sulaa 1978 K (1705 °C) lämpötilassa </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:B-cristobalite.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a3/B-cristobalite.png/100px-B-cristobalite.png" decoding="async" width="100" height="91" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a3/B-cristobalite.png/150px-B-cristobalite.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a3/B-cristobalite.png/200px-B-cristobalite.png 2x" data-file-width="680" data-file-height="621" /></a></span> </td></tr> <tr> <td><a href="/w/index.php?title=Keatiitti&action=edit&redlink=1" class="new" title="Keatiitti (sivua ei ole)">keatiitti</a> </td> <td>tetragoninen </td> <td>3.011 </td> <td>Si<sub>5</sub>O<sub>10</sub>, Si<sub>4</sub>O<sub>8</sub>, Si<sub>8</sub>O<sub>16</sub>-renkaita; syntetisoidaan emäksen avulla 600–900 K (327–627 °C) lämpötilassa ja 40–400 MPa paineessa </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:Keatite.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Keatite.png/100px-Keatite.png" decoding="async" width="100" height="94" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Keatite.png/150px-Keatite.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Keatite.png/200px-Keatite.png 2x" data-file-width="656" data-file-height="614" /></a></span> </td></tr> <tr> <td><a href="/wiki/Moganiitti" title="Moganiitti">moganiitti</a> </td> <td>monokliininen </td> <td> </td> <td>Si<sub>4</sub>O<sub>8</sub> ja Si<sub>6</sub>O<sub>12</sub>-renkaita </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:Moganite.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Moganite.png/100px-Moganite.png" decoding="async" width="100" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Moganite.png/150px-Moganite.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Moganite.png/200px-Moganite.png 2x" data-file-width="279" data-file-height="628" /></a></span> </td></tr> <tr> <td><a href="/w/index.php?title=Koesiitti&action=edit&redlink=1" class="new" title="Koesiitti (sivua ei ole)">koesiitti</a> </td> <td>monokliininen </td> <td>2.911 </td> <td>Si<sub>4</sub>O<sub>8</sub> ja Si<sub>8</sub>O<sub>16</sub>-renkaita; syntetisoidaan 900 K (627 °C) lämpötilassa ja 3–3.5 GPa paineessa </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:Coesite.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Coesite.png/100px-Coesite.png" decoding="async" width="100" height="77" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Coesite.png/150px-Coesite.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Coesite.png/200px-Coesite.png 2x" data-file-width="758" data-file-height="582" /></a></span> </td></tr> <tr> <td><a href="/w/index.php?title=Stishoviitti&action=edit&redlink=1" class="new" title="Stishoviitti (sivua ei ole)">stishoviitti</a> </td> <td>tetragoninen </td> <td>4.287 </td> <td> </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:Stishovite.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Stishovite.png/100px-Stishovite.png" decoding="async" width="100" height="102" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Stishovite.png/150px-Stishovite.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a6/Stishovite.png/200px-Stishovite.png 2x" data-file-width="603" data-file-height="618" /></a></span> </td></tr> <tr> <td><a href="/w/index.php?title=Seifertiitti&action=edit&redlink=1" class="new" title="Seifertiitti (sivua ei ole)">seifertiitti</a> </td> <td>rombinen </td> <td>4.294 </td> <td>syntetisoidaan yli 40 GPa paineessa<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:SeifertiteStructure.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/SeifertiteStructure.png/100px-SeifertiteStructure.png" decoding="async" width="100" height="88" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/SeifertiteStructure.png/150px-SeifertiteStructure.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/db/SeifertiteStructure.png/200px-SeifertiteStructure.png 2x" data-file-width="702" data-file-height="616" /></a></span> </td></tr> <tr> <td><a href="/w/index.php?title=Melanoflogiitti&action=edit&redlink=1" class="new" title="Melanoflogiitti (sivua ei ole)">melanoflogiitti</a> </td> <td>kuutiollinen </td> <td>2.04 </td> <td>Si<sub>5</sub>O<sub>10</sub>, Si<sub>6</sub>O<sub>12</sub>-renkaita </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:MelanophlogiteStucture.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/MelanophlogiteStucture.png/100px-MelanophlogiteStucture.png" decoding="async" width="100" height="100" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/MelanophlogiteStucture.png/150px-MelanophlogiteStucture.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ac/MelanophlogiteStucture.png/200px-MelanophlogiteStucture.png 2x" data-file-width="613" data-file-height="614" /></a></span> </td></tr> <tr> <td>kuituinen <br />W-silika </td> <td>rombinen </td> <td>1.97 </td> <td>sulaa ~1700 K (~1427 °C) lämpötilassa </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:SiS2typeSilica.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/29/SiS2typeSilica.png/100px-SiS2typeSilica.png" decoding="async" width="100" height="53" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/29/SiS2typeSilica.png/150px-SiS2typeSilica.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/29/SiS2typeSilica.png/200px-SiS2typeSilica.png 2x" data-file-width="1829" data-file-height="970" /></a></span> </td></tr> <tr> <td><a href="/w/index.php?title=2D_silika&action=edit&redlink=1" class="new" title="2D silika (sivua ei ole)">2D silika</a> </td> <td>heksagoninen </td> <td> </td> <td> </td> <td><span typeof="mw:File"><a href="/wiki/Tiedosto:2D_silica_structure.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/de/2D_silica_structure.png/100px-2D_silica_structure.png" decoding="async" width="100" height="136" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/de/2D_silica_structure.png/150px-2D_silica_structure.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/de/2D_silica_structure.png/200px-2D_silica_structure.png 2x" data-file-width="310" data-file-height="422" /></a></span> </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Lähteet"><span id="L.C3.A4hteet"></span>Lähteet</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Piidioksidi&veaction=edit&section=2" title="Muokkaa osiota Lähteet" class="mw-editsection-visualeditor"><span>muokkaa</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Piidioksidi&action=edit&section=2" title="Muokkaa osion lähdekoodia: Lähteet"><span>muokkaa wikitekstiä</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="viitteet-malline" class="viitteet-malline" style="list-style-type:decimal;"><ol class="references"> <li id="cite_note-Ruokavirasto.Piidioksidi-1"><span class="mw-cite-backlink"><a href="#cite_ref-Ruokavirasto.Piidioksidi_1-0">↑</a></span> <span class="reference-text"><span class="verkkoviite" title="Verkkoviite"><a rel="nofollow" class="external text" href="https://www.ruokavirasto.fi/elintarvikkeet/ohjeita-kuluttajille/e-kooditlisaaineet/e-koodit/e551">E551 - Piidioksidi</a> <i>Ruokavirasto</i>. Viitattu 25.9.2023.</span></span> </li> <li id="cite_note-Semtu.microsilica-2"><span class="mw-cite-backlink"><a href="#cite_ref-Semtu.microsilica_2-0">↑</a></span> <span class="reference-text"><span class="verkkoviite" title="Verkkoviite"><a rel="nofollow" class="external text" href="https://www.semtu.fi/application/files/9515/3511/0178/Elkem-microsilica-920-D-esite.pdf">Elkem-microsilica® - 920 D</a> <i>Semtu</i>.  huhtikuu 2018. Viitattu 27.1.2020.</span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.mindat.org/min-26715.html">Seifertite</a>. Mindat.org.</span> </li> </ol> </div> <div id="stub" class="noprint" style="background-color: var( --background-color-neutral-subtle, #f8f9fa ); color: var( --color-emphasized, #101418 ); font-size: 95%; padding: 0.2em 0.2em 0.2em 2em; margin-top:1em; margin-bottom: 0.1em; border-top: 1px solid var( --border-color-subtle, #c8ccd1 ); clear: both"><i>Tämä <a href="/wiki/Kemia" title="Kemia">kemiaan</a> liittyvä artikkeli on <a href="/wiki/Wikipedia:Tynk%C3%A4" title="Wikipedia:Tynkä">tynkä</a>. Voit auttaa Wikipediaa <span class="plainlinks"><a class="external text" href="https://fi.wikipedia.org/w/index.php?title=Piidioksidi&veaction=edit">laajentamalla</a></span> artikkelia.</i><br /></div> </div><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Noudettu kohteesta ”<a dir="ltr" href="https://fi.wikipedia.org/w/index.php?title=Piidioksidi&oldid=21850033">https://fi.wikipedia.org/w/index.php?title=Piidioksidi&oldid=21850033</a>”</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Toiminnot:Luokat" title="Toiminnot:Luokat">Luokat</a>: <ul><li><a href="/wiki/Luokka:Oksidit" title="Luokka:Oksidit">Oksidit</a></li><li><a href="/wiki/Luokka:Piiyhdisteet" title="Luokka:Piiyhdisteet">Piiyhdisteet</a></li><li><a href="/wiki/Luokka:Puolimetalliyhdisteet" title="Luokka:Puolimetalliyhdisteet">Puolimetalliyhdisteet</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Piilotetut luokat: <ul><li><a href="/wiki/Luokka:Matematiikkaan,_fysiikkaan_tai_kemiaan_liittyv%C3%A4t_artikkelit" title="Luokka:Matematiikkaan, fysiikkaan tai kemiaan liittyvät artikkelit">Matematiikkaan, fysiikkaan tai kemiaan liittyvät artikkelit</a></li><li><a href="/wiki/Luokka:Kemiatyng%C3%A4t" title="Luokka:Kemiatyngät">Kemiatyngät</a></li><li><a href="/wiki/Luokka:Seulonnan_keskeiset_artikkelit" title="Luokka:Seulonnan keskeiset artikkelit">Seulonnan keskeiset artikkelit</a></li></ul></div></div> </div> </div> <div id="mw-navigation"> <h2>Navigointivalikko</h2> <div id="mw-head"> <nav id="p-personal" class="mw-portlet mw-portlet-personal vector-user-menu-legacy vector-menu" aria-labelledby="p-personal-label" > <h3 id="p-personal-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Henkilökohtaiset työkalut</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anonuserpage" class="mw-list-item"><span title="IP-osoitteesi käyttäjäsivu">Et ole kirjautunut</span></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Toiminnot:Oma_keskustelu" title="Keskustelu tämän IP-osoitteen muokkauksista [n]" accesskey="n"><span>Keskustelu</span></a></li><li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Toiminnot:Omat_muokkaukset" title="Luettelo tästä IP-osoitteesta tehdyistä muokkauksista [y]" accesskey="y"><span>Muokkaukset</span></a></li><li id="pt-createaccount" class="mw-list-item"><a href="/w/index.php?title=Toiminnot:Luo_tunnus&returnto=Piidioksidi" title="On suositeltavaa luoda käyttäjätunnus ja kirjautua sisään. Se ei kuitenkaan ole pakollista."><span>Luo tunnus</span></a></li><li id="pt-login" class="mw-list-item"><a href="/w/index.php?title=Toiminnot:Kirjaudu_sis%C3%A4%C3%A4n&returnto=Piidioksidi" title="On suositeltavaa kirjautua sisään. Se ei kuitenkaan ole pakollista. [o]" accesskey="o"><span>Kirjaudu sisään</span></a></li> </ul> </div> </nav> <div id="left-navigation"> <nav id="p-namespaces" class="mw-portlet mw-portlet-namespaces vector-menu-tabs vector-menu-tabs-legacy vector-menu" aria-labelledby="p-namespaces-label" > <h3 id="p-namespaces-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Nimiavaruudet</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected mw-list-item"><a href="/wiki/Piidioksidi" title="Näytä sisältösivu [c]" accesskey="c"><span>Artikkeli</span></a></li><li id="ca-talk" class="new mw-list-item"><a href="/w/index.php?title=Keskustelu:Piidioksidi&action=edit&redlink=1" rel="discussion" class="new" title="Keskustele sisällöstä (sivua ei ole) [t]" accesskey="t"><span>Keskustelu</span></a></li> </ul> </div> </nav> <nav id="p-variants" class="mw-portlet mw-portlet-variants emptyPortlet vector-menu-dropdown vector-menu" aria-labelledby="p-variants-label" > <input type="checkbox" id="p-variants-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-variants" class="vector-menu-checkbox" aria-labelledby="p-variants-label" > <label id="p-variants-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">suomi</span> </label> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </nav> </div> <div id="right-navigation"> <nav id="p-views" class="mw-portlet mw-portlet-views vector-menu-tabs vector-menu-tabs-legacy vector-menu" aria-labelledby="p-views-label" > <h3 id="p-views-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Näkymät</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected mw-list-item"><a href="/wiki/Piidioksidi"><span>Lue</span></a></li><li id="ca-ve-edit" class="mw-list-item"><a href="/w/index.php?title=Piidioksidi&veaction=edit" title="Muokkaa tätä sivua [v]" accesskey="v"><span>Muokkaa</span></a></li><li id="ca-edit" class="collapsible mw-list-item"><a href="/w/index.php?title=Piidioksidi&action=edit" title="Muokkaa tämän sivun lähdekoodia [e]" accesskey="e"><span>Muokkaa wikitekstiä</span></a></li><li id="ca-history" class="mw-list-item"><a href="/w/index.php?title=Piidioksidi&action=history" title="Sivun aikaisemmat versiot [h]" accesskey="h"><span>Näytä historia</span></a></li> </ul> </div> </nav> <nav id="p-cactions" class="mw-portlet mw-portlet-cactions emptyPortlet vector-menu-dropdown vector-menu" aria-labelledby="p-cactions-label" title="Lisää valintoja" > <input type="checkbox" id="p-cactions-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-cactions" class="vector-menu-checkbox" aria-labelledby="p-cactions-label" > <label id="p-cactions-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Muut</span> </label> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </nav> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <h3 >Haku</h3> <form action="/w/index.php" id="searchform" class="vector-search-box-form"> <div id="simpleSearch" class="vector-search-box-inner" data-search-loc="header-navigation"> <input class="vector-search-box-input" type="search" name="search" placeholder="Hae Wikipediasta" aria-label="Hae Wikipediasta" autocapitalize="sentences" title="Hae Wikipediasta [f]" accesskey="f" id="searchInput" > <input type="hidden" name="title" value="Toiminnot:Haku"> <input id="mw-searchButton" class="searchButton mw-fallbackSearchButton" type="submit" name="fulltext" title="Hae sivuilta tätä tekstiä" value="Hae"> <input id="searchButton" class="searchButton" type="submit" name="go" title="Siirry sivulle, joka on tarkalleen tällä nimellä" value="Siirry"> </div> </form> </div> </div> </div> <div id="mw-panel" class="vector-legacy-sidebar"> <div id="p-logo" role="banner"> <a class="mw-wiki-logo" href="/wiki/Wikipedia:Etusivu" title="Etusivu"></a> </div> <nav id="p-navigation" class="mw-portlet mw-portlet-navigation vector-menu-portal portal vector-menu" aria-labelledby="p-navigation-label" > <h3 id="p-navigation-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Valikko</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Wikipedia:Etusivu" title="Siirry etusivulle [z]" accesskey="z"><span>Etusivu</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:Tietoja"><span>Tietoja Wikipediasta</span></a></li><li id="n-allarticles" class="mw-list-item"><a href="/wiki/Wikipedia:Selaa_luokittain"><span>Kaikki sivut</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Toiminnot:Satunnainen_sivu" title="Avaa satunnainen sivu [x]" accesskey="x"><span>Satunnainen artikkeli</span></a></li> </ul> </div> </nav> <nav id="p-interaction" class="mw-portlet mw-portlet-interaction vector-menu-portal portal vector-menu" aria-labelledby="p-interaction-label" > <h3 id="p-interaction-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Osallistuminen</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Ohje:Sis%C3%A4llys" title="Ohjeita"><span>Ohje</span></a></li><li id="n-Kahvihuone" class="mw-list-item"><a href="/wiki/Wikipedia:Kahvihuone"><span>Kahvihuone</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Wikipedia:Ajankohtaista" title="Taustatietoa tämänhetkisistä tapahtumista"><span>Ajankohtaista</span></a></li><li id="n-Tuoreet-odottavat-muutokset" class="mw-list-item"><a href="//fi.wikipedia.org/wiki/Toiminnot:Tuoreet_muutokset?damaging=&goodfaith=&hideliu=0&hideanons=0&userExpLevel=&hidemyself=0&hidebyothers=0&hidebots=1&hidehumans=0&hidepatrolled=1&hideunpatrolled=0&hideminor=0&hidemajor=0&hidepageedits=0&hidenewpages=0&hidecategorization=1&hideWikibase=1&hidelog=0&highlight=1&goodfaith__verylikelybad_color=c5&goodfaith__likelybad_color=c4&goodfaith__maybebad_color=c3&damaging__verylikelybad_color=c5&damaging__likelybad_color=c4&damaging__maybebad_color=c3"><span>Tuoreet odottavat muutokset</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Toiminnot:Tuoreet_muutokset" title="Luettelo tuoreista muutoksista [r]" accesskey="r"><span>Tuoreet muutokset</span></a></li><li id="n-sitesupport" class="mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_fi.wikipedia.org&uselang=fi" title="Tue meitä"><span>Lahjoitukset</span></a></li> </ul> </div> </nav> <nav id="p-tb" class="mw-portlet mw-portlet-tb vector-menu-portal portal vector-menu" aria-labelledby="p-tb-label" > <h3 id="p-tb-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Työkalut</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Toiminnot:T%C3%A4nne_viittaavat_sivut/Piidioksidi" title="Lista sivuista, jotka viittaavat tänne [j]" accesskey="j"><span>Tänne viittaavat sivut</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Toiminnot:Linkitetyt_muutokset/Piidioksidi" rel="nofollow" title="Viimeisimmät muokkaukset sivuissa, joille viitataan tältä sivulta [k]" accesskey="k"><span>Linkitettyjen sivujen muutokset</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Toiminnot:Toimintosivut" title="Näytä toimintosivut [q]" accesskey="q"><span>Toimintosivut</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Piidioksidi&oldid=21850033" title="Ikilinkki tämän sivun tähän versioon"><span>Ikilinkki</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Piidioksidi&action=info" title="Enemmän tietoa tästä sivusta"><span>Sivun tiedot</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Toiminnot:Viittaus&page=Piidioksidi&id=21850033&wpFormIdentifier=titleform" title="Tietoa tämän sivun lainaamisesta"><span>Viitetiedot</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Toiminnot:UrlShortener&url=https%3A%2F%2Ffi.wikipedia.org%2Fwiki%2FPiidioksidi"><span>Lyhennä URL-osoite</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Toiminnot:QrCode&url=https%3A%2F%2Ffi.wikipedia.org%2Fwiki%2FPiidioksidi"><span>Lataa QR-koodi</span></a></li> </ul> </div> </nav> <nav id="p-coll-print_export" class="mw-portlet mw-portlet-coll-print_export vector-menu-portal portal vector-menu" aria-labelledby="p-coll-print_export-label" > <h3 id="p-coll-print_export-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Tulosta/vie</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Toiminnot:DownloadAsPdf&page=Piidioksidi&action=show-download-screen"><span>Lataa PDF-tiedostona</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Piidioksidi&printable=yes" title="Tulostettava versio [p]" accesskey="p"><span>Tulostettava versio</span></a></li> </ul> </div> </nav> <nav id="p-wikibase-otherprojects" class="mw-portlet mw-portlet-wikibase-otherprojects vector-menu-portal portal vector-menu" aria-labelledby="p-wikibase-otherprojects-label" > <h3 id="p-wikibase-otherprojects-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Muissa hankkeissa</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Silicon_dioxide" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q116269" title="Linkki yhdistettyyn keskustietovaraston kohteeseen [g]" accesskey="g"><span>Wikidata-kohde</span></a></li> </ul> </div> </nav> <nav id="p-lang" class="mw-portlet mw-portlet-lang vector-menu-portal portal vector-menu" aria-labelledby="p-lang-label" > <h3 id="p-lang-label" class="vector-menu-heading " > <span class="vector-menu-heading-label">Muilla kielillä</span> </h3> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Silikondioksied" title="Silikondioksied — afrikaans" lang="af" hreflang="af" data-title="Silikondioksied" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AB%D9%86%D8%A7%D8%A6%D9%8A_%D8%A3%D9%83%D8%B3%D9%8A%D8%AF_%D8%A7%D9%84%D8%B3%D9%8A%D9%84%D9%8A%D9%83%D9%88%D9%86" title="ثنائي أكسيد السيليكون — arabia" lang="ar" hreflang="ar" data-title="ثنائي أكسيد السيليكون" data-language-autonym="العربية" data-language-local-name="arabia" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Silica" title="Silica — aragonia" lang="an" hreflang="an" data-title="Silica" data-language-autonym="Aragonés" data-language-local-name="aragonia" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Kremni_oksidi(IV)" title="Kremni oksidi(IV) — azeri" lang="az" hreflang="az" data-title="Kremni oksidi(IV)" data-language-autonym="Azərbaycanca" data-language-local-name="azeri" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%B3%DB%8C%D9%84%DB%8C%D8%B3%DB%8C%D9%88%D9%85_%D8%AF%DB%8C%E2%80%8C%D8%A7%D9%88%DA%A9%D8%B3%DB%8C%D8%AF" title="سیلیسیوم دیاوکسید — South Azerbaijani" lang="azb" hreflang="azb" data-title="سیلیسیوم دیاوکسید" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Silikon_dioksida" title="Silikon dioksida — indonesia" lang="id" hreflang="id" data-title="Silikon dioksida" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesia" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Silikon_dioksida" title="Silikon dioksida — malaiji" lang="ms" hreflang="ms" data-title="Silikon dioksida" data-language-autonym="Bahasa Melayu" data-language-local-name="malaiji" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B8%E0%A6%BF%E0%A6%B2%E0%A6%BF%E0%A6%95%E0%A6%A8_%E0%A6%A1%E0%A6%BE%E0%A6%87_%E0%A6%85%E0%A6%95%E0%A7%8D%E0%A6%B8%E0%A6%BE%E0%A6%87%E0%A6%A1" title="সিলিকন ডাই অক্সাইড — bengali" lang="bn" hreflang="bn" data-title="সিলিকন ডাই অক্সাইড" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/J%C4%AB-sng-h%C3%B2a_ke-s%C3%B2%CD%98" title="Jī-sng-hòa ke-sò͘ — min nan -kiina" lang="nan" hreflang="nan" data-title="Jī-sng-hòa ke-sò͘" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan -kiina" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Silicij-dioksid" title="Silicij-dioksid — bosnia" lang="bs" hreflang="bs" data-title="Silicij-dioksid" data-language-autonym="Bosanski" data-language-local-name="bosnia" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A1%D0%B8%D0%BB%D0%B8%D1%86%D0%B8%D0%B5%D0%B2_%D0%B4%D0%B8%D0%BE%D0%BA%D1%81%D0%B8%D0%B4" title="Силициев диоксид — bulgaria" lang="bg" hreflang="bg" data-title="Силициев диоксид" data-language-autonym="Български" data-language-local-name="bulgaria" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Di%C3%B2xid_de_silici" title="Diòxid de silici — katalaani" lang="ca" hreflang="ca" data-title="Diòxid de silici" data-language-autonym="Català" data-language-local-name="katalaani" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9A%D1%80%D0%B5%D0%BC%D0%BD%D0%B8%D0%B9_%D1%82%C4%83%D0%BF%D1%80%D0%B0%D0%B2%C4%95" title="Кремний тăправĕ — tšuvassi" lang="cv" hreflang="cv" data-title="Кремний тăправĕ" data-language-autonym="Чӑвашла" data-language-local-name="tšuvassi" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Oxid_k%C5%99emi%C4%8Dit%C3%BD" title="Oxid křemičitý — tšekki" lang="cs" hreflang="cs" data-title="Oxid křemičitý" data-language-autonym="Čeština" data-language-local-name="tšekki" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Siliciumdioxid" title="Siliciumdioxid — tanska" lang="da" hreflang="da" data-title="Siliciumdioxid" data-language-autonym="Dansk" data-language-local-name="tanska" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Siliciumdioxid" title="Siliciumdioxid — saksa" lang="de" hreflang="de" data-title="Siliciumdioxid" data-language-autonym="Deutsch" data-language-local-name="saksa" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/R%C3%A4nidioksiid" title="Ränidioksiid — viro" lang="et" hreflang="et" data-title="Ränidioksiid" data-language-autonym="Eesti" data-language-local-name="viro" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%94%CE%B9%CE%BF%CE%BE%CE%B5%CE%AF%CE%B4%CE%B9%CE%BF_%CF%84%CE%BF%CF%85_%CF%80%CF%85%CF%81%CE%B9%CF%84%CE%AF%CE%BF%CF%85" title="Διοξείδιο του πυριτίου — kreikka" lang="el" hreflang="el" data-title="Διοξείδιο του πυριτίου" data-language-autonym="Ελληνικά" data-language-local-name="kreikka" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Silicon_dioxide" title="Silicon dioxide — englanti" lang="en" hreflang="en" data-title="Silicon dioxide" data-language-autonym="English" data-language-local-name="englanti" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/%C3%93xido_de_silicio(IV)" title="Óxido de silicio(IV) — espanja" lang="es" hreflang="es" data-title="Óxido de silicio(IV)" data-language-autonym="Español" data-language-local-name="espanja" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Silicia_dioksido" title="Silicia dioksido — esperanto" lang="eo" hreflang="eo" data-title="Silicia dioksido" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Silizio_dioxido" title="Silizio dioxido — baski" lang="eu" hreflang="eu" data-title="Silizio dioxido" data-language-autonym="Euskara" data-language-local-name="baski" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%DB%8C%D9%84%DB%8C%D8%B3%DB%8C%D9%85_%D8%AF%DB%8C%E2%80%8C%D8%A7%DA%A9%D8%B3%DB%8C%D8%AF" title="سیلیسیم دیاکسید — persia" lang="fa" hreflang="fa" data-title="سیلیسیم دیاکسید" data-language-autonym="فارسی" data-language-local-name="persia" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Dioxyde_de_silicium" title="Dioxyde de silicium — ranska" lang="fr" hreflang="fr" data-title="Dioxyde de silicium" data-language-autonym="Français" data-language-local-name="ranska" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Silice" title="Silice — iiri" lang="ga" hreflang="ga" data-title="Silice" data-language-autonym="Gaeilge" data-language-local-name="iiri" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9D%B4%EC%82%B0%ED%99%94_%EA%B7%9C%EC%86%8C" title="이산화 규소 — korea" lang="ko" hreflang="ko" data-title="이산화 규소" data-language-autonym="한국어" data-language-local-name="korea" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ha mw-list-item"><a href="https://ha.wikipedia.org/wiki/Silicon_dioxide" title="Silicon dioxide — hausa" lang="ha" hreflang="ha" data-title="Silicon dioxide" data-language-autonym="Hausa" data-language-local-name="hausa" class="interlanguage-link-target"><span>Hausa</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8D%D5%AB%D5%AC%D5%AB%D6%81%D5%AB%D5%B8%D6%82%D5%B4%D5%AB_%D5%A5%D6%80%D5%AF%D6%85%D6%84%D5%BD%D5%AB%D5%A4" title="Սիլիցիումի երկօքսիդ — armenia" lang="hy" hreflang="hy" data-title="Սիլիցիումի երկօքսիդ" data-language-autonym="Հայերեն" data-language-local-name="armenia" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B8%E0%A4%BF%E0%A4%B2%E0%A4%BF%E0%A4%95%E0%A4%BE" title="सिलिका — hindi" lang="hi" hreflang="hi" data-title="सिलिका" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Silicijev_dioksid" title="Silicijev dioksid — kroatia" lang="hr" hreflang="hr" data-title="Silicijev dioksid" data-language-autonym="Hrvatski" data-language-local-name="kroatia" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Silico" title="Silico — ido" lang="io" hreflang="io" data-title="Silico" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Silice" title="Silice — italia" lang="it" hreflang="it" data-title="Silice" data-language-autonym="Italiano" data-language-local-name="italia" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A6%D7%95%D7%A8%D7%9F_%D7%93%D7%95-%D7%97%D7%9E%D7%A6%D7%A0%D7%99" title="צורן דו-חמצני — heprea" lang="he" hreflang="he" data-title="צורן דו-חמצני" data-language-autonym="עברית" data-language-local-name="heprea" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9A%D1%80%D0%B5%D0%BC%D0%BD%D0%B8%D0%B9_%D0%BE%D0%BA%D1%81%D0%B8%D0%B4%D1%96_(IV)" title="Кремний оксиді (IV) — kazakki" lang="kk" hreflang="kk" data-title="Кремний оксиді (IV)" data-language-autonym="Қазақша" data-language-local-name="kazakki" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9A%D1%80%D0%B5%D0%BC%D0%BD%D0%B8%D0%B9_%D0%BA%D0%BE%D1%88_%D0%BE%D0%BA%D1%81%D0%B8%D0%B4%D0%B8" title="Кремний кош оксиди — kirgiisi" lang="ky" hreflang="ky" data-title="Кремний кош оксиди" data-language-autonym="Кыргызча" data-language-local-name="kirgiisi" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Silika_(kemia)" title="Silika (kemia) — swahili" lang="sw" hreflang="sw" data-title="Silika (kemia)" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Oxidum_silicii" title="Oxidum silicii — latina" lang="la" hreflang="la" data-title="Oxidum silicii" data-language-autonym="Latina" data-language-local-name="latina" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Sil%C4%ABcija_dioks%C4%ABds" title="Silīcija dioksīds — latvia" lang="lv" hreflang="lv" data-title="Silīcija dioksīds" data-language-autonym="Latviešu" data-language-local-name="latvia" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Silicio_dioksidas" title="Silicio dioksidas — liettua" lang="lt" hreflang="lt" data-title="Silicio dioksidas" data-language-autonym="Lietuvių" data-language-local-name="liettua" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Szil%C3%ADcium-dioxid" title="Szilícium-dioxid — unkari" lang="hu" hreflang="hu" data-title="Szilícium-dioxid" data-language-autonym="Magyar" data-language-local-name="unkari" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A1%D0%B8%D0%BB%D0%B8%D1%86%D0%B8%D1%83%D0%BC_%D0%B4%D0%B8%D0%BE%D0%BA%D1%81%D0%B8%D0%B4" title="Силициум диоксид — makedonia" lang="mk" hreflang="mk" data-title="Силициум диоксид" data-language-autonym="Македонски" data-language-local-name="makedonia" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Silisy" title="Silisy — malagassi" lang="mg" hreflang="mg" data-title="Silisy" data-language-autonym="Malagasy" data-language-local-name="malagassi" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B8%E0%B4%BF%E0%B4%B2%E0%B4%BF%E0%B4%95%E0%B5%8D%E0%B4%95" title="സിലിക്ക — malajalam" lang="ml" hreflang="ml" data-title="സിലിക്ക" data-language-autonym="മലയാളം" data-language-local-name="malajalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A6%D0%B0%D1%85%D0%B8%D1%83%D1%80%D1%8B%D0%BD_%D0%B4%D0%B0%D0%B2%D1%85%D0%B0%D1%80_%D0%B8%D1%81%D1%8D%D0%BB" title="Цахиурын давхар исэл — mongoli" lang="mn" hreflang="mn" data-title="Цахиурын давхар исэл" data-language-autonym="Монгол" data-language-local-name="mongoli" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%80%E1%80%BB%E1%80%B1%E1%80%AC%E1%80%80%E1%80%BA%E1%80%9E%E1%80%9C%E1%80%84%E1%80%BA%E1%80%B8" title="ကျောက်သလင်း — burma" lang="my" hreflang="my" data-title="ကျောက်သလင်း" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burma" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Siliciumdioxide" title="Siliciumdioxide — hollanti" lang="nl" hreflang="nl" data-title="Siliciumdioxide" data-language-autonym="Nederlands" data-language-local-name="hollanti" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E4%BA%8C%E9%85%B8%E5%8C%96%E3%82%B1%E3%82%A4%E7%B4%A0" title="二酸化ケイ素 — japani" lang="ja" hreflang="ja" data-title="二酸化ケイ素" data-language-autonym="日本語" data-language-local-name="japani" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Silisiumdioksid" title="Silisiumdioksid — norjan bokmål" lang="nb" hreflang="nb" data-title="Silisiumdioksid" data-language-autonym="Norsk bokmål" data-language-local-name="norjan bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Silika" title="Silika — norjan nynorsk" lang="nn" hreflang="nn" data-title="Silika" data-language-autonym="Norsk nynorsk" data-language-local-name="norjan nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Kremniy_dioksid" title="Kremniy dioksid — uzbekki" lang="uz" hreflang="uz" data-title="Kremniy dioksid" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbekki" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B8%E0%A8%BF%E0%A8%B2%E0%A9%80%E0%A8%95%E0%A8%BE%E0%A8%A8_%E0%A8%A1%E0%A8%BE%E0%A8%88%E0%A8%86%E0%A8%95%E0%A8%B8%E0%A8%BE%E0%A8%88%E0%A8%A1" title="ਸਿਲੀਕਾਨ ਡਾਈਆਕਸਾਈਡ — pandžabi" lang="pa" hreflang="pa" data-title="ਸਿਲੀਕਾਨ ਡਾਈਆਕਸਾਈਡ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="pandžabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%B3%D9%84%DB%8C%DA%A9%D8%A7%D9%86_%DA%88%D8%A7%D8%A6%DB%8C_%D8%A2%DA%A9%D8%B3%D8%A7%D8%A6%DB%8C%DA%88" title="سلیکان ڈائی آکسائیڈ — Western Punjabi" lang="pnb" hreflang="pnb" data-title="سلیکان ڈائی آکسائیڈ" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%B3%D9%84%D9%8A%D9%83%D8%A7%D9%86_%DA%89%D8%A7%DB%8C_%D8%A7%DA%A9%D8%B3%D8%A7%D9%8A%DA%89" title="سليكان ډای اکسايډ — paštu" lang="ps" hreflang="ps" data-title="سليكان ډای اکسايډ" data-language-autonym="پښتو" data-language-local-name="paštu" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Ditlenek_krzemu" title="Ditlenek krzemu — puola" lang="pl" hreflang="pl" data-title="Ditlenek krzemu" data-language-autonym="Polski" data-language-local-name="puola" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Di%C3%B3xido_de_sil%C3%ADcio" title="Dióxido de silício — portugali" lang="pt" hreflang="pt" data-title="Dióxido de silício" data-language-autonym="Português" data-language-local-name="portugali" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Dioxid_de_siliciu" title="Dioxid de siliciu — romania" lang="ro" hreflang="ro" data-title="Dioxid de siliciu" data-language-autonym="Română" data-language-local-name="romania" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Ullaya" title="Ullaya — ketšua" lang="qu" hreflang="qu" data-title="Ullaya" data-language-autonym="Runa Simi" data-language-local-name="ketšua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%94%D0%B8%D0%BE%D0%BA%D1%81%D0%B8%D0%B4_%D0%BA%D1%80%D0%B5%D0%BC%D0%BD%D0%B8%D1%8F" title="Диоксид кремния — venäjä" lang="ru" hreflang="ru" data-title="Диоксид кремния" data-language-autonym="Русский" data-language-local-name="venäjä" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Silicon_dioxide" title="Silicon dioxide — skotti" lang="sco" hreflang="sco" data-title="Silicon dioxide" data-language-autonym="Scots" data-language-local-name="skotti" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Silicon_dioxide" title="Silicon dioxide — Simple English" lang="en-simple" hreflang="en-simple" data-title="Silicon dioxide" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Oxid_kremi%C4%8Dit%C3%BD" title="Oxid kremičitý — slovakki" lang="sk" hreflang="sk" data-title="Oxid kremičitý" data-language-autonym="Slovenčina" data-language-local-name="slovakki" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Silicijev_dioksid" title="Silicijev dioksid — sloveeni" lang="sl" hreflang="sl" data-title="Silicijev dioksid" data-language-autonym="Slovenščina" data-language-local-name="sloveeni" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A1%D0%B8%D0%BB%D0%B8%D1%86%D0%B8%D1%98%D1%83%D0%BC-%D0%B4%D0%B8%D0%BE%D0%BA%D1%81%D0%B8%D0%B4" title="Силицијум-диоксид — serbia" lang="sr" hreflang="sr" data-title="Силицијум-диоксид" data-language-autonym="Српски / srpski" data-language-local-name="serbia" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Silicijum_dioksid" title="Silicijum dioksid — serbokroaatti" lang="sh" hreflang="sh" data-title="Silicijum dioksid" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroaatti" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Kiseldioxid" title="Kiseldioxid — ruotsi" lang="sv" hreflang="sv" data-title="Kiseldioxid" data-language-autonym="Svenska" data-language-local-name="ruotsi" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%9A%E0%AE%BF%E0%AE%B2%E0%AE%BF%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AE%BE" title="சிலிக்கா — tamili" lang="ta" hreflang="ta" data-title="சிலிக்கா" data-language-autonym="தமிழ்" data-language-local-name="tamili" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%8B%E0%B8%B4%E0%B8%A5%E0%B8%B4%E0%B8%81%E0%B8%AD%E0%B8%99%E0%B9%84%E0%B8%94%E0%B8%AD%E0%B8%AD%E0%B8%81%E0%B9%84%E0%B8%8B%E0%B8%94%E0%B9%8C" title="ซิลิกอนไดออกไซด์ — thai" lang="th" hreflang="th" data-title="ซิลิกอนไดออกไซด์" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Silic_dioxide" title="Silic dioxide — vietnam" lang="vi" hreflang="vi" data-title="Silic dioxide" data-language-autonym="Tiếng Việt" data-language-local-name="vietnam" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Silisyum_dioksit" title="Silisyum dioksit — turkki" lang="tr" hreflang="tr" data-title="Silisyum dioksit" data-language-autonym="Türkçe" data-language-local-name="turkki" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%94%D1%96%D0%BE%D0%BA%D1%81%D0%B8%D0%B4_%D0%BA%D1%80%D0%B5%D0%BC%D0%BD%D1%96%D1%8E" title="Діоксид кремнію — ukraina" lang="uk" hreflang="uk" data-title="Діоксид кремнію" data-language-autonym="Українська" data-language-local-name="ukraina" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%B3%D9%84%DB%8C%DA%A9%D8%A7%D9%86_%DA%88%D8%A7%D8%A6%DB%8C_%D8%A2%DA%A9%D8%B3%D8%A7%D8%A6%DA%88" title="سلیکان ڈائی آکسائڈ — urdu" lang="ur" hreflang="ur" data-title="سلیکان ڈائی آکسائڈ" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Silika" title="Silika — waray" lang="war" hreflang="war" data-title="Silika" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E4%BA%8C%E6%B0%A7%E5%8C%96%E7%A1%85" title="二氧化硅 — wu-kiina" lang="wuu" hreflang="wuu" data-title="二氧化硅" data-language-autonym="吴语" data-language-local-name="wu-kiina" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E4%BA%8C%E6%B0%A7%E5%8C%96%E7%9F%BD" title="二氧化矽 — kantoninkiina" lang="yue" hreflang="yue" data-title="二氧化矽" data-language-autonym="粵語" data-language-local-name="kantoninkiina" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E4%BA%8C%E6%B0%A7%E5%8C%96%E7%A1%85" title="二氧化硅 — kiina" lang="zh" hreflang="zh" data-title="二氧化硅" data-language-autonym="中文" data-language-local-name="kiina" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q116269#sitelinks-wikipedia" title="Muokkaa kieltenvälisiä linkkejä" class="wbc-editpage">Muokkaa linkkejä</a></span></div> </div> </nav> </div> </div> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Sivua on viimeksi muutettu 25. syyskuuta 2023 kello 20.43.</li> <li id="footer-info-copyright">Teksti on saatavilla <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.fi">Creative Commons Attribution/Share-Alike</a> -lisenssillä; lisäehtoja voi sisältyä. Katso <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use/fi">käyttöehdot</a>.<br /> Wikipedia® on <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/">Wikimedia Foundationin</a> rekisteröimä tavaramerkki.<br /> <a href="/wiki/Wikipedia:Artikkelien_ongelmat" title="Wikipedia:Artikkelien ongelmat">Ongelma artikkelissa?</a></li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Tietosuojakäytäntö</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:Tietoja">Tietoja Wikipediasta</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:Vastuuvapaus">Vastuuvapaus</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Käytössäännöstö</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Kehittäjät</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/fi.wikipedia.org">Tilastot</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Evästekäytäntö</a></li> <li id="footer-places-mobileview"><a href="//fi.m.wikipedia.org/w/index.php?title=Piidioksidi&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobiilinäkymä</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> <script>(RLQ=window.RLQ||[]).push(function(){mw.log.warn("This page is using the deprecated ResourceLoader module \"codex-search-styles\".\n[1.43] Use a CodexModule with codexComponents to set your specific components used: https://www.mediawiki.org/wiki/Codex#Using_a_limited_subset_of_components");mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-rzfvc","wgBackendResponseTime":171,"wgPageParseReport":{"limitreport":{"cputime":"0.179","walltime":"0.503","ppvisitednodes":{"value":1475,"limit":1000000},"postexpandincludesize":{"value":18495,"limit":2097152},"templateargumentsize":{"value":5118,"limit":2097152},"expansiondepth":{"value":14,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":1710,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 174.481 1 -total"," 84.05% 146.644 1 Malline:Yhdiste"," 81.69% 142.526 1 Malline:Tietolaatikko"," 28.22% 49.232 4 Malline:Wikidata-fr"," 25.00% 43.619 1 Malline:Tietolaatikko/kuva"," 14.15% 24.684 9 Malline:Tietolaatikko/tietorivi"," 9.10% 15.875 1 Malline:Viitteet"," 6.89% 12.024 3 Malline:Tietolaatikko/otsikko"," 4.77% 8.320 2 Malline:Verkkoviite"," 4.56% 7.963 1 Malline:Tynkä/Kemia"]},"scribunto":{"limitreport-timeusage":{"value":"0.035","limit":"10.000"},"limitreport-memusage":{"value":1565328,"limit":52428800}},"cachereport":{"origin":"mw-web.eqiad.main-745f94f9f8-zqbj6","timestamp":"20241120062809","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Piidioksidi","url":"https:\/\/fi.wikipedia.org\/wiki\/Piidioksidi","sameAs":"http:\/\/www.wikidata.org\/entity\/Q116269","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q116269","author":{"@type":"Organization","name":"Wikimedia-hankkeiden muokkaajat"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2007-05-29T22:10:52Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/5\/5f\/Sample_of_silicon_dioxide.jpg","headline":"kemiallinen yhdiste"}</script> </body> </html>