開云電競自然造化而成(cheng)。唐．元稹〈春蟬〉詩：「作詩憐化工(gong)(gong)，不遣春蟬生(sheng)開云電(dian)競。」宋．蘇軾〈浣溪沙．慚愧(kui)今(jin)年(nian)二麥豐〉詞：「千(qian)畦細浪舞晴空，化工(gong)(gong)余力染(ran)夭(yao)紅。」藉著應(ying)用(yong)化學的反應(ying)所經(jing)營的工(gong)(gong)業開云電(dian)競。參見「化學工(gong)(gong)業」條。

　　利用(yong)化(hua)學(xue)反應原理(li)來(lai)生(sheng)產(chan)(chan)(chan)制品的(de)營利事業(ye)。分為三類：一、基(ji)本(ben)化(hua)學(xue)品工(gong)(gong)業(ye)，如(ru)生(sheng)產(chan)(chan)(chan)酸(suan)、鹼開(kai)(kai)云電(dian)競、鹽等。二、原料化(hua)學(xue)品工(gong)(gong)業(ye)，如(ru)生(sheng)產(chan)(chan)(chan)合成(cheng)纖維、塑膠等。三、消費用(yong)化(hua)學(xue)品工(gong)(gong)業(ye)開(kai)(kai)云電(dian)競，如(ru)生(sheng)產(chan)(chan)(chan)油(you)漆、肥皂開(kai)(kai)云電(dian)競、藥(yao)品等。