工業鹽，是化(hua)學工業的最基本原(yuan)料(liao)之一(yi)，主要成分有氯(lv)化(hua)鈉、亞硝酸(suan)鈉等(deng)，被(bei)稱為“化(hua)學工業之母”。基本化(hua)學工業主要產品中(zhong)的鹽酸(suan)、燒堿、純堿、氯(lv)化(hua)銨、氯(lv)氣等(deng)主要是用工業鹽為原(yuan)料(liao)生(sheng)產的。

　　基本化(hua)(hua)學工(gong)(gong)(gong)業(ye)主(zhu)要(yao)產(chan)品中的(de)鹽(yan)酸、燒堿(jian)、純堿(jian)、氯化(hua)(hua)銨(an)、氯氣等(deng)主(zhu)要(yao)是用(yong)工(gong)(gong)(gong)業(ye)鹽(yan)為原料生(sheng)(sheng)產(chan)的(de)。此外，還用(yong)于肥皂制造、陶瓷、玻璃生(sheng)(sheng)產(chan)、日用(yong)化(hua)(hua)工(gong)(gong)(gong)、石油鉆(zhan)探、鉆(zhan)井工(gong)(gong)(gong)作液(ye)、完井液(ye)、石油化(hua)(hua)工(gong)(gong)(gong)脫(tuo)水(shui)液(ye)、建筑行(xing)業(ye)早(zao)強劑、生(sheng)(sheng)產(chan)涂料的(de)凝(ning)(ning)固(gu)劑、橡膠(jiao)行(xing)業(ye)乳膠(jiao)凝(ning)(ning)結(jie)劑、造紙工(gong)(gong)(gong)業(ye)添加劑及廢紙張脫(tuo)墨、化(hua)(hua)學工(gong)(gong)(gong)業(ye)的(de)無機(ji)化(hua)(hua)工(gong)(gong)(gong)原料及硫(liu)酸根脫(tuo)除劑，褐藻酸鈉(na)的(de)凝(ning)(ning)固(gu)劑、防治小麥、蘋(pin)果、白菜等(deng)腐爛及食(shi)品防腐劑、制取金屬鈉(na)及其(qi)他鈉(na)化(hua)(hua)合物(wu)、鋼鐵(tie)熱(re)處理(li)介質等(deng)。在水(shui)處理(li)、公路除雪、制冷冷藏(zang)等(deng)方面，鹽(yan)也有廣泛的(de)用(yong)途