基本化(hua)學工(gong)(gong)(gong)業(ye)(ye)主要產(chan)品(pin)中的(de)(de)鹽酸、燒堿(jian)(jian)、純堿(jian)(jian)、氯化(hua)銨、氯氣等主要是用(yong)(yong)(yong)工(gong)(gong)(gong)業(ye)(ye)鹽為原料(liao)生產(chan)的(de)(de)。此外,還用(yong)(yong)(yong)于肥皂制造、陶瓷(ci)、玻璃生產(chan)、日用(yong)(yong)(yong)化(hua)工(gong)(gong)(gong)、石(shi)油鉆(zhan)探、鉆(zhan)井(jing)工(gong)(gong)(gong)作液(ye)、完(wan)井(jing)液(ye)、石(shi)油化(hua)工(gong)(gong)(gong)脫(tuo)水液(ye)、建(jian)筑行(xing)業(ye)(ye)早強劑、生產(chan)涂料(liao)的(de)(de)凝固(gu)劑、橡(xiang)膠(jiao)行(xing)業(ye)(ye)乳(ru)膠(jiao)凝結劑、造紙(zhi)工(gong)(gong)(gong)業(ye)(ye)添加(jia)劑及(ji)廢紙(zhi)張脫(tuo)墨(mo)、化(hua)學工(gong)(gong)(gong)業(ye)(ye)的(de)(de)無機(ji)化(hua)工(gong)(gong)(gong)原料(liao)及(ji)硫酸根脫(tuo)除劑,褐(he)藻酸鈉(na)的(de)(de)凝固(gu)劑、防治小麥、蘋果、白菜(cai)等腐爛及(ji)食品(pin)防腐劑、制取金屬鈉(na)及(ji)其(qi)他(ta)鈉(na)化(hua)合物、鋼鐵熱處理介質等。在水處理、公路除雪、制冷冷藏等方面,鹽也有廣(guang)泛的(de)(de)用(yong)(yong)(yong)途。