| 翻訳と辞書 |
| colored fire ： ウィキペディア英語版 |
colored fire
Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over. Generally, the color of a flame may be red, orange, blue, yellow, or white, and is dominated by blackbody radiation from soot and steam. When additional chemicals are added to the fuel burning, their atomic emission spectra can affect the frequencies of visible light radiation emitted - in other words, the flame will appear a different color dependent upon the chemical additives. Flame coloring is also a good way to demonstrate how chemicals change when subjected to heat and how they also change the matter around them.〔http://voyager.egglescliffe.org.uk/physics/astronomy/blackbody/bbody.html〕〔http://csep10.phys.utk.edu/astr162/lect/light/absorption.html〕
To color their flames, Pyrotechnicians will generally use metal salts. Specific combinations of fuels and co-solvents are required in order to dissolve the necessary chemicals. Color enhancers (usually chlorine donors) are frequently added too, the most common of which is polyvinyl chloride. A practical use of colored fire is the flame test, where metal cations are tested by placing the sample in a flame and analyzing the color produced.〔http://www.chemguide.co.uk/inorganic/group1/flametests.html〕〔http://www.skylighter.com/fireworks/making-fireworks-projects/chlorine-donor-fireworks-chemicals.asp〕
==Flame colorants==
(詳細はウィキペディア（Wikipedia）』
■ウィキペディアで「colored fire」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|