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A flame (from Latin flamma) is the visible, gaseous part of a fire. It is caused by a highly exothermic chemical reaction made in a thin zone. [1]
The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma. [2] Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity will be different. [3]
A reducing flame is a flame with insufficient oxygen. It has an opaque yellow or orange color due to carbon or hydrocarbons [3] which bind with (or reduce) the oxygen contained in the materials the flame processes. [2] The flame is also called carburizing flame, since it tends to introduce carbon soot into the molten metal.
A cool flame is a flame having a typical temperature of about 400 °C (752 °F). [1] In contrast to an ordinary hot flame, the reaction is not vigorous and releases little heat, light, or carbon dioxide .
The flame point of a material is a temperature value at which sustained flame can be supported on the material once ignited by an external source. [28] Once the flame point of a material is reached, it produces enough fuel vapors or oils to support continuous burning.
PARIS — When is a flame not a flame? When it's an environmentally responsible alternative, apparently. For all the hue and cry about the artistic merit of the Opening Ceremony, the closing ...
“A twin flame is the ‘other half’ of you,” Bernstein adds. “It is (based on the idea that) before you were born, there were these two parts of you that got separated.” ...
A campfire burning with blue and green flame colorants Different colors of natural flame from a bunsen burner, without additives. Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over.