基本化(hua)(hua)(hua)學(xue)工(gong)(gong)業(ye)(ye)主要產(chan)品(pin)(pin)中的(de)(de)鹽(yan)酸(suan)、燒堿(jian)、純(chun)堿(jian)、氯化(hua)(hua)(hua)銨、氯氣等主要是用(yong)工(gong)(gong)業(ye)(ye)鹽(yan)為原料生(sheng)產(chan)的(de)(de)。此外(wai)，還用(yong)于肥皂制造、陶瓷、玻(bo)璃(li)生(sheng)產(chan)、日用(yong)化(hua)(hua)(hua)工(gong)(gong)、石油(you)鉆(zhan)探(tan)、鉆(zhan)井(jing)(jing)工(gong)(gong)作液(ye)、完井(jing)(jing)液(ye)、石油(you)化(hua)(hua)(hua)工(gong)(gong)脫(tuo)水液(ye)、建筑行(xing)業(ye)(ye)早強劑、生(sheng)產(chan)涂料的(de)(de)凝(ning)固劑、橡膠(jiao)行(xing)業(ye)(ye)乳膠(jiao)凝(ning)結劑、造紙工(gong)(gong)業(ye)(ye)添加劑及廢紙張脫(tuo)墨、化(hua)(hua)(hua)學(xue)工(gong)(gong)業(ye)(ye)的(de)(de)無機化(hua)(hua)(hua)工(gong)(gong)原料及硫酸(suan)根脫(tuo)除劑，褐藻酸(suan)鈉的(de)(de)凝(ning)固劑、防治小麥、蘋果、白(bai)菜等腐(fu)爛及食品(pin)(pin)防腐(fu)劑、制取金屬鈉及其他鈉化(hua)(hua)(hua)合(he)物、鋼(gang)鐵熱處理(li)介質等。在水處理(li)、公(gong)路除雪、制冷(leng)冷(leng)藏等方面(mian)，鹽(yan)也有廣泛的(de)(de)用(yong)途。