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Temperature of a Blue Flame - The Physics Factbook

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Limitations on Exclusive Rights: Fair Use">fair use</a> website</p> <div class="add add-yes"><div class="sharethis-inline-share-buttons"></div><span class="add-goo"><a href="#search"><img src="https://omniscientwalnut.com/search.svg" alt="search icon" title="Search this site"></a></span></div><div id="search" class="overlay"><div class="popup shadow"><a class="close" href="#" title="Close this window">[close]</a><div class="gcse-searchbox-only"></div></div></div> </header> <section id="discussion"> <table class="results"> <tr> <th>Bibliographic&nbsp;Entry</th> <th>Result<br>(w/surrounding&nbsp;text)</th> <th>Standardized<br>Result</th> </tr> <tr> <td>&quot;Flame Analysis.&quot; <i>Macmillan Encyclopedia of Chemistry</i>. New York: Simon &amp; Schuster, 1997: 626.</td> <td>&quot;the temperature is 2,950–3,050&nbsp;°C&quot;</td> <td>3,220–3320&nbsp;K</td> </tr> <tr> <td rowspan="2">Gaydon &amp; Wolfhard. <i>Flames: Their Structure, Radiation and Temperature</i>. 4th ed. New York: Halsted, 1979: 155, 244-245.</td> <td>&quot;1000&nbsp;°C, 8000&nbsp;°C&quot;</td> <td>1270&nbsp;K<br>8270&nbsp;K</td> </tr> <tr> <td>&quot;This very high sensitivity of the method is due to the rapid variation of light intensity with temperature; at 2,500&nbsp;K and 5890&nbsp;&Aring;&quot;</td> <td>2500&nbsp;K</td> </tr> <tr> <td>Fristrom &amp; Westenberg. <i>Flame Structure</i>. New York: McGraw Hill, 1965: 155.</td> <td>&quot;1,750&nbsp;°C 1,800&nbsp;°C 1,820&nbsp;°C&quot;</td> <td>2020–2090&nbsp;K</td> </tr> </table> <p>Fire was first used by the caveman as a source of heat. Even in modern day, we still use fires (candles, Bunsen burners, and gas flames for cooking). These types of fire are actually processes of oxidation. Oxidation is the combination of oxygen with another material. When the combination of oxygen and the other material is so fast that it produces a flame, it is called combustion.</p> <p>To cause combustion, heat must be added to the object until it reaches a certain temperature called the ignition point. Not only does each material has to reach a different temperature before it is ignited, it also depends upon the conditions of the environment (weather, amount of gas around the object, etc.). These factors are so dependent that when acetylene is ignited in air, it reaches a temperature of 2,200&nbsp;°C to 2,400&nbsp;°C. If it is ignited in pure oxygen, it reaches a higher temperature of 2,950&nbsp;°C to 3,050&nbsp;°C. Flames also have different areas of temperature, even in an ordinary candle, the temperatures are separated into several different regions. The regions are also separated by color, the blue region (the innermost part of the flame) being the hottest. This shows there is not one precise temperature for a blue flame.</p> <p>James Danyluk -- 1998</p> <table class="results"> <tr> <th>Bibliographic&nbsp;Entry</th> <th>Result<br>(w/surrounding&nbsp;text)</th> <th>Standardized<br>Result</th> </tr> <tr> <td>Lyons, John W. <i>Fire</i>. New York: Scientific American Books, 1985: 60.</td> <td><table> <tr> <th colspan="2">Some Calculated Adiabatic Flame Temperatures*</th> </tr> <tr> <th colspan="2">Absolute temperature (K)</th> </tr> <tr> <td>Acetylene in air</td> <td>2,600</td> </tr> <tr> <td>Acetylene in oxygen</td> <td>3,410</td> </tr> <tr> <td>Methane in air</td> <td>2,232</td> </tr> <tr> <td>Methane in oxygen</td> <td>3,053</td> </tr> <tr> <td>Hydrogen in air</td> <td>2,400</td> </tr> <tr> <td>Hydrogen in Oxygen</td> <td>3,080</td> </tr> <tr> <td>Heptane in air</td> <td>2,290</td> </tr> <tr> <td>Heptane in oxygen</td> <td>3,100</td> </tr> </table>From Glassman.<br>*Assumes fuel and oxidizer begin at room temperature.</td> <td>2232–3410&nbsp;K</td> </tr> <tr> <td>McGee, Harold. <i>On Food and Cooking: The Science and Lore of the Kitchen</i>. New York: Fireside, 1984: 614.</td> <td>&quot;Glowing coals or the nickel-chrome alloys used in electrical appliances reach about 2000&nbsp;°F (1093&nbsp;°C), and a gas flame is closer to 3000&nbsp;°F (1649&nbsp;°C). The walls of an oven, by contrast, rarely exceed 500&nbsp;°F (269&nbsp;°C).&quot;</td> <td>1900&nbsp;°C</td> </tr> </table> <p>Editor's Supplement -- 2001</p> <p>External links to this page:</p> <ul> <li><a href="http://www.scirus.com/srsapp/sciruslink?src=web&url=http%3A%2F%2Fwww.icgst.com%2Fgvip%2FVolume6%2FSpecialIssue%2FApplicable_Image_Processing_Techniques%2FSpicalIssue.pdf">Intelligent System for Flame Analysis</a> [pdf], Anjali Mahajan &amp; Ravikiran Mahajan, International Journal on Graphics, Vision and Image Processing, Special Issue on Applicable Image Processing, March&nbsp;2006</li> <li><a href="https://books.google.com/books?id=oOAYkOOrf9AC&amp;lpg=PA19&amp;dq=%22glenn%20elert%22&amp;num=8&amp;client=internal-uds&amp;pg=PA19#v=onepage&amp;q=%22glenn%20elert%22&amp;f=false">Burn This Book: Ignite a New Life With God</a>, Garth Heckman</li> </ul> </section> <footer> <div class="add add-yes"><div class="sharethis-inline-share-buttons"></div><span class="add-goo"><a href="#search"><img src="https://omniscientwalnut.com/search.svg" alt="search icon" title="Search this site"></a></span></div> </footer> </article> <footer> <nav> <ul> <li><a href="https://hypertextbook.com/facts/about/" target="_top" title="News, About, Links">prefaces</a></li> <li><a href="https://hypertextbook.com/facts/" target="_top" title="Topic Index">topics</a></li> <li><a href="https://hypertextbook.com/facts/index-authors.shtml" target="_top" title="Author Index">authors</a></li> <li><a href="https://hypertextbook.com/facts/index-special.shtml" target="_top" title="Special Projects">special</a></li> <li><a href="https://hypertextbook.com/facts/about/instructions.shtml" target="_top" title="Instructions to Students">instructions</a></li> </ul> </nav> <div class="signature"><span><a href="https://hypertextbook.com" target="_top"><img src="https://omniscientwalnut.com/eglobe.svg" title="hypertextbook.com" alt="eglobe logo"></a></span><span><a href="https://hypertextbook.com/facts/" target="_top" title="An encyclopedia of scientific essays">The Physics Factbook</a><br><a href="https://glennelert.us" target="_blank" title="Well, who are you? 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