zOBT=" Ads" zGCID=" test1" zGCID+=" test15" zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') z160=zpreC(160,600);z336=zpreC(336,280);z728=zpreC(728,90);z133=zpreC(336,133);zItw=160 Search over 1.4 million articles by over 600 experts Search Chemistry var h2=document.getElementsByTagName("h2")[0];if(h2.getElementsByTagName("a")[0].firstChild.nodeValue.length>29)h2.className="long"; Home Education Chemistry ... Homework Help See More About: pyrotechnics color change chemistry how things work Chemistry of Firework Colors A Marriage of Art and Science Creating firework colors is a complex endeavor, requiring considerable art and application of physical science. Excluding propellants or special effects, the points of light ejected from fireworks, termed 'stars', generally require an oxygen -producer, fuel, binder (to keep everything where it needs to be), and color producer. There are two main mechanisms of color production in fireworks, incandescence and luminescence. Incandescence Incandescence is light produced from heat. Heat causes a substance to become hot and glow, initially emitting infrared, then red, orange, yellow, and white light as it becomes increasingly hotter. When the temperature of a firework is controlled, the glow of components, such as charcoal, can be manipulated to be the desired color (temperature) at the proper time. Metals, such as aluminum magnesium , and titanium , burn very brightly and are useful for increasing the temperature of the firework. | |
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