Story highlights. (CNN)The superintendent of the Tennessee school board where a teacher is accused of kidnapping student Elizabeth Thomas has made an appeal to his former employee. If Elizabeth is with you, bring her home, Maury County Public Schools Superintendent Chris Marczak told CNN on Thursday night.
For example methanol (race car fuel) (1 carbon 4 hydrogens 1 oxygen) burns with an almost invisible flame and acetylene (2 carbons 2 hydrogens (cutting torch without the oxygen turned on) burns with a bright yellow flame with clumps of soot raining down.
Answer 1: Blue flames come from very hot, complete burning of air and fuel. Orange color comes from cooler spots in the flame where fuel isn't being totally burned and these produce a little bit of soot and smoke. The color of the flame is related to the heat of the flame. Think about the colors of different hot things: the Sun is white or yellow, a hot stove is red, a camp-fire is orange, and a gas flame is usually blue. These colors come from different kinds of a light and different places in the electromagnetic spectrum.