基本化(hua)學工(gong)(gong)業(ye)主要產(chan)(chan)品中的鹽酸(suan)、燒堿、純堿、氯化(hua)銨、氯氣等主要是(shi)用(yong)工(gong)(gong)業(ye)鹽為原料生產(chan)(chan)的。此外,還(huan)用(yong)于肥皂制造(zao)、陶瓷(ci)、玻璃生產(chan)(chan)、日用(yong)化(hua)工(gong)(gong)、石油(you)鉆探、鉆井工(gong)(gong)作液、完(wan)井液、石油(you)化(hua)工(gong)(gong)脫(tuo)水(shui)液、建(jian)筑行業(ye)早強劑(ji)(ji)(ji)、生產(chan)(chan)涂料的凝固劑(ji)(ji)(ji)、橡膠行業(ye)乳膠凝結劑(ji)(ji)(ji)、造(zao)紙工(gong)(gong)業(ye)添加劑(ji)(ji)(ji)及(ji)廢紙張(zhang)脫(tuo)墨、化(hua)學工(gong)(gong)業(ye)的無(wu)機化(hua)工(gong)(gong)原料及(ji)硫酸(suan)根脫(tuo)除(chu)劑(ji)(ji)(ji),褐藻酸(suan)鈉(na)的凝固劑(ji)(ji)(ji)、防治小麥、蘋果、白菜等腐爛及(ji)食品防腐劑(ji)(ji)(ji)、制取(qu)金屬鈉(na)及(ji)其他鈉(na)化(hua)合物、鋼鐵熱(re)處理介質等。在水(shui)處理、公路除(chu)雪、制冷(leng)冷(leng)藏等方面,鹽也有廣泛的用(yong)途(tu)。