基本(ben)化(hua)(hua)學(xue)工(gong)(gong)(gong)(gong)(gong)業主(zhu)要產(chan)品(pin)中的(de)鹽酸、燒堿、純堿、氯化(hua)(hua)銨、氯氣等主(zhu)要是用工(gong)(gong)(gong)(gong)(gong)業鹽為原料(liao)(liao)生產(chan)的(de)。此外，還用于肥皂(zao)制(zhi)造(zao)、陶瓷、玻璃(li)生產(chan)、日用化(hua)(hua)工(gong)(gong)(gong)(gong)(gong)、石油(you)鉆探、鉆井(jing)工(gong)(gong)(gong)(gong)(gong)作液(ye)(ye)、完井(jing)液(ye)(ye)、石油(you)化(hua)(hua)工(gong)(gong)(gong)(gong)(gong)脫(tuo)(tuo)水液(ye)(ye)、建筑(zhu)行業早強劑(ji)(ji)、生產(chan)涂(tu)料(liao)(liao)的(de)凝(ning)固(gu)(gu)劑(ji)(ji)、橡膠(jiao)行業乳膠(jiao)凝(ning)結(jie)劑(ji)(ji)、造(zao)紙工(gong)(gong)(gong)(gong)(gong)業添(tian)加劑(ji)(ji)及廢(fei)紙張(zhang)脫(tuo)(tuo)墨、化(hua)(hua)學(xue)工(gong)(gong)(gong)(gong)(gong)業的(de)無機化(hua)(hua)工(gong)(gong)(gong)(gong)(gong)原料(liao)(liao)及硫酸根脫(tuo)(tuo)除劑(ji)(ji)，褐(he)藻酸鈉的(de)凝(ning)固(gu)(gu)劑(ji)(ji)、防治小麥、蘋果、白(bai)菜等腐(fu)爛及食品(pin)防腐(fu)劑(ji)(ji)、制(zhi)取(qu)金屬鈉及其他鈉化(hua)(hua)合(he)物(wu)、鋼鐵熱處(chu)理(li)介(jie)質等。在水處(chu)理(li)、公路除雪、制(zhi)冷冷藏等方面(mian)，鹽也有廣泛(fan)的(de)用途。