White, the inside of the inner core is white and as most people over 3rd or 2nd grade know the inner core is the hottest place on earth and has white flames! Blue is also very hot. Blue is not even close to white because people have touched...
http://wiki.answers.com/Q/What_color_of_flame_has_the_h...
Is a red flame safe? Why is there a color red? How is the color red made? Why are fire are color red? Is the color of our blood blue? Why arent red stars the hottest? QWhy blue is your favorite color? What is heater red or blue flame?
wiki.answers.com/Q/Which_is_hotter_Blue_flame_or_red_fl... wiki.answers.com/Q/Which_is_hotter_Blue_flame_or_red_flame
However, terms related to color temperature can lead to confusion, especially when talking about flames themselves. Incandescence does color a flame, but it is not the only source of its color.
www.webexhibits.org/causesofcolor/3B.html www.webexhibits.org/causesofcolor/3B.html
The faint blue region of a flame, however, gets its color from emissions from a transient molecule formed in the flame, C2. In general, the hottest region of a flame is near the top of the luminescent zone.
www.newton.dep.anl.gov/askasci/gen01/gen01323.htm
Science experiment 314. Hottest Part of a Flame. This week's experiment comes from a question that I got during an energy show. A student asked what color flame was the hottest. It is a great question, and the answer may fool you. ... Which color flame is hottest - red, yellow or blue? It is a great question, and the answer...
nicholasacademy.com/scienceexperiment314hottestflame.ht... nicholasacademy.com/scienceexperiment314hottestflame.html
Fire - Wikipedia, the free encyclopedia
Fire is the rapid oxidation of a combustible material releasing heat, light, and various reaction products such as carbon dioxide and water. If hot enough, the gases may become ionized to produce pla...
en.wikipedia.org/wiki/Fire
It is what causes the visible flame. Flame color varies depending on what you're burning and how hot it is. Color variation within in a flame is caused by uneven temperature. Typically, the hottest part of a flame -- the base -- glows blue, and the cooler parts at the top glow orange or yellow.
science.howstuffworks.com/fire1.htm
The temperature change causes the color of the flame to change from blue, at the hottest, lower portion of the flame, to the typical, bright, yellowish-orange or bright orange color with which most people are familiar with.
www.coolquiz.com/trivia/explain/docs/flame.asp www.coolquiz.com/trivia/explain/docs/flame.asp
Why is the color of a flame usually orange? Learnn more... ... The temperature change causes the color of the flame to change from blue, at the hottest, lower portion of the flame, to the typical, bright, yellowish-orange or bright orange color with which most people are familiar.
www.myoan.net/facts/facts_flames.html www.myoan.net/facts/facts_flames.html
Provided your backyard lighter flame is free of contaminants that might skew the color, a slightly lean violet-blue flame is the hottest. Blue-violet = high frequency = high energy = high temperature.
www.straightdope.com/columns/read/2159/what-is-the-hott... www.straightdope.com/columns/read/2159/what-is-the-hottest-part-of-a-flame