jamie 4 3 small in lambskin 33411 saint laurent grain de poudre textured mixed matelasse triquilt small monogram monochrome satchel black 1882578 chanel lambskin quilted cc pearl crush wallet on chain woc light pink 1821089 chanel large flap bag with top handlehigh end grade 56046 chanel caviar quilted medium cuba rainbow boy flap pink multicolor 1811781 hermes taurillon clemence evelyne iii pm etoupe 1886438 louis vuitton damier ebene marais bucket 23 1885966 louis vuitton crocodile twist chain wallet bleuet 1828522 chanel lambskin scallop quilted medium pagoda flap black 1697518 chanel lambskin quilted mini pearl crush flap black 1785850 saint laurent grain de poudre matelasse chevron monogram chain wallet rouge legion 1883677 chanel 19 maxi handbaghigh end grade 51282 burberry check backpack5601 dior necklace 127030 chanel flap phone holder with chainhigh end grade 152792 gucci ophidia small top handle bag 44295 l bag m46197 carryall mm chanel small flap baghigh end grade 38289 hermes togo birkin 30 rose extreme 1887400 versace satin crystal embellished la medusa mini hobo bag black multicolor 1775882 为什么焰火有各zhong各样的颜数理化之_数理化之谜 - 棒子小说网
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为什么焰火有各zhong各样的颜数理化之

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为什么焰火有各zhong各样的颜se?

焰火的底bu装着黑se火药,它发生燃烧、爆炸时就把焰火送上了云端,再在空中引燃ding端的圆球,焰火就在夜空中像天女散hua般地开hua了。焰火能有各zhong各样的颜se,主要是焰火圆球里面装有发光剂与发se剂。发光剂是铝粉或者镁粉,它们猛烈燃烧时,she1chu自炽的光芒。发se剂是整个焰火中的主角,焰火那缤纷的se彩,全倚仗发se剂。发se剂其实就是些普普通通的金属盐类,因为许多金属盐类在高温下能够发she1chu各zhong彩se芒。例如,硝酸钠与碳酸氢会发chu黄光,硝酸锶会发chu红se,硝酸钡发chu绿se,硝酸铜、硫酸铜发chu蓝光等等。为使焰火爆破,发光剂与发se剂充分燃烧,焰火圆球里还装有燃烧剂。

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