基本(ben)化(hua)(hua)學工(gong)(gong)(gong)業(ye)(ye)主要產(chan)品中(zhong)的(de)鹽酸、燒堿(jian)、純(chun)堿(jian)、氯(lv)化(hua)(hua)銨、氯(lv)氣等(deng)主要是用工(gong)(gong)(gong)業(ye)(ye)鹽為原(yuan)料生(sheng)(sheng)產(chan)的(de)。此(ci)外，還(huan)用于(yu)肥皂制(zhi)(zhi)造、陶瓷、玻(bo)璃生(sheng)(sheng)產(chan)、日用化(hua)(hua)工(gong)(gong)(gong)、石油鉆(zhan)探、鉆(zhan)井(jing)工(gong)(gong)(gong)作(zuo)液(ye)(ye)、完井(jing)液(ye)(ye)、石油化(hua)(hua)工(gong)(gong)(gong)脫(tuo)水液(ye)(ye)、建筑行業(ye)(ye)早強劑(ji)(ji)、生(sheng)(sheng)產(chan)涂(tu)料的(de)凝(ning)固劑(ji)(ji)、橡(xiang)膠行業(ye)(ye)乳(ru)膠凝(ning)結劑(ji)(ji)、造紙工(gong)(gong)(gong)業(ye)(ye)添加劑(ji)(ji)及廢(fei)紙張脫(tuo)墨、化(hua)(hua)學工(gong)(gong)(gong)業(ye)(ye)的(de)無(wu)機(ji)化(hua)(hua)工(gong)(gong)(gong)原(yuan)料及硫酸根脫(tuo)除(chu)劑(ji)(ji)，褐(he)藻(zao)酸鈉(na)的(de)凝(ning)固劑(ji)(ji)、防治小麥(mai)、蘋(pin)果、白菜等(deng)腐(fu)爛及食品防腐(fu)劑(ji)(ji)、制(zhi)(zhi)取金屬鈉(na)及其他鈉(na)化(hua)(hua)合物、鋼鐵熱處理(li)介(jie)質(zhi)等(deng)。在水處理(li)、公路除(chu)雪(xue)、制(zhi)(zhi)冷冷藏等(deng)方面，鹽也有廣泛的(de)用途。