工(gong)(gong)業(ye)(ye)(ye)鹽(yan)，是化學(xue)工(gong)(gong)業(ye)(ye)(ye)的最基本原(yuan)料之(zhi)一，主要成分有氯化鈉(na)、亞硝酸(suan)鈉(na)等，被稱(cheng)為“化學(xue)工(gong)(gong)業(ye)(ye)(ye)之(zhi)母”。基本化學(xue)工(gong)(gong)業(ye)(ye)(ye)主要產(chan)品(pin)中的鹽(yan)酸(suan)、燒(shao)堿、純堿、氯化銨(an)、氯氣等主要是用工(gong)(gong)業(ye)(ye)(ye)鹽(yan)為原(yuan)料生產(chan)的。

　　基本化(hua)(hua)學工(gong)(gong)(gong)業(ye)主要(yao)產品中的(de)(de)鹽酸、燒堿(jian)、純堿(jian)、氯化(hua)(hua)銨、氯氣等(deng)主要(yao)是用工(gong)(gong)(gong)業(ye)鹽為原料(liao)生(sheng)產的(de)(de)。此外，還用于肥(fei)皂制造(zao)、陶瓷、玻璃(li)生(sheng)產、日用化(hua)(hua)工(gong)(gong)(gong)、石(shi)油(you)鉆(zhan)探、鉆(zhan)井(jing)工(gong)(gong)(gong)作液、完井(jing)液、石(shi)油(you)化(hua)(hua)工(gong)(gong)(gong)脫(tuo)水(shui)液、建筑行(xing)業(ye)早強劑(ji)(ji)、生(sheng)產涂料(liao)的(de)(de)凝(ning)固劑(ji)(ji)、橡膠(jiao)(jiao)行(xing)業(ye)乳膠(jiao)(jiao)凝(ning)結劑(ji)(ji)、造(zao)紙(zhi)工(gong)(gong)(gong)業(ye)添加劑(ji)(ji)及廢紙(zhi)張脫(tuo)墨、化(hua)(hua)學工(gong)(gong)(gong)業(ye)的(de)(de)無(wu)機化(hua)(hua)工(gong)(gong)(gong)原料(liao)及硫酸根(gen)脫(tuo)除(chu)劑(ji)(ji)，褐藻(zao)酸鈉(na)的(de)(de)凝(ning)固劑(ji)(ji)、防治小麥、蘋果、白菜等(deng)腐(fu)爛及食(shi)品防腐(fu)劑(ji)(ji)、制取金屬鈉(na)及其他鈉(na)化(hua)(hua)合物、鋼鐵熱(re)處理介質等(deng)。在水(shui)處理、公路(lu)除(chu)雪、制冷(leng)冷(leng)藏等(deng)方(fang)面，鹽也有廣(guang)泛的(de)(de)用途