基本(ben)化(hua)(hua)(hua)(hua)學(xue)工(gong)(gong)(gong)業主(zhu)(zhu)要產品中(zhong)的(de)(de)(de)鹽酸(suan)、燒堿、純(chun)堿、氯(lv)化(hua)(hua)(hua)(hua)銨(an)、氯(lv)氣等主(zhu)(zhu)要是(shi)用(yong)工(gong)(gong)(gong)業鹽為(wei)原(yuan)料(liao)生產的(de)(de)(de)。此(ci)外，還用(yong)于肥皂制(zhi)造、陶瓷(ci)、玻璃生產、日用(yong)化(hua)(hua)(hua)(hua)工(gong)(gong)(gong)、石油鉆(zhan)探、鉆(zhan)井(jing)(jing)工(gong)(gong)(gong)作液、完井(jing)(jing)液、石油化(hua)(hua)(hua)(hua)工(gong)(gong)(gong)脫(tuo)水液、建筑行(xing)業早強劑、生產涂(tu)料(liao)的(de)(de)(de)凝(ning)固劑、橡(xiang)膠行(xing)業乳膠凝(ning)結劑、造紙工(gong)(gong)(gong)業添加(jia)劑及(ji)廢紙張脫(tuo)墨、化(hua)(hua)(hua)(hua)學(xue)工(gong)(gong)(gong)業的(de)(de)(de)無機(ji)化(hua)(hua)(hua)(hua)工(gong)(gong)(gong)原(yuan)料(liao)及(ji)硫酸(suan)根脫(tuo)除劑，褐藻酸(suan)鈉(na)的(de)(de)(de)凝(ning)固劑、防治小麥、蘋(pin)果、白菜等腐爛及(ji)食品防腐劑、制(zhi)取金屬(shu)鈉(na)及(ji)其他鈉(na)化(hua)(hua)(hua)(hua)合(he)物、鋼鐵熱處(chu)理(li)介(jie)質等。在水處(chu)理(li)、公路除雪、制(zhi)冷(leng)冷(leng)藏等方面，鹽也有廣泛的(de)(de)(de)用(yong)途(tu)。