工業鹽(yan)，是化學工業的(de)最基本(ben)原料之(zhi)一，主要成分有氯化鈉(na)、亞(ya)硝酸鈉(na)等(deng)，被稱為“化學工業之(zhi)母(mu)”。基本(ben)化學工業主要產(chan)品中(zhong)的(de)鹽(yan)酸、燒堿、純堿、氯化銨、氯氣等(deng)主要是用工業鹽(yan)為原料生產(chan)的(de)。

　　基本化(hua)(hua)學工(gong)(gong)(gong)業(ye)(ye)(ye)主(zhu)要產品(pin)中(zhong)的(de)鹽酸、燒堿(jian)、純堿(jian)、氯化(hua)(hua)銨、氯氣等(deng)主(zhu)要是用(yong)(yong)工(gong)(gong)(gong)業(ye)(ye)(ye)鹽為原料(liao)生(sheng)(sheng)產的(de)。此外(wai)，還(huan)用(yong)(yong)于肥皂制(zhi)造(zao)、陶瓷、玻璃生(sheng)(sheng)產、日用(yong)(yong)化(hua)(hua)工(gong)(gong)(gong)、石油鉆(zhan)探、鉆(zhan)井(jing)工(gong)(gong)(gong)作液、完(wan)井(jing)液、石油化(hua)(hua)工(gong)(gong)(gong)脫水液、建筑行(xing)(xing)業(ye)(ye)(ye)早(zao)強(qiang)劑(ji)、生(sheng)(sheng)產涂料(liao)的(de)凝固(gu)劑(ji)、橡膠(jiao)行(xing)(xing)業(ye)(ye)(ye)乳膠(jiao)凝結劑(ji)、造(zao)紙(zhi)工(gong)(gong)(gong)業(ye)(ye)(ye)添(tian)加劑(ji)及廢(fei)紙(zhi)張脫墨、化(hua)(hua)學工(gong)(gong)(gong)業(ye)(ye)(ye)的(de)無(wu)機化(hua)(hua)工(gong)(gong)(gong)原料(liao)及硫酸根脫除(chu)(chu)劑(ji)，褐(he)藻酸鈉(na)(na)的(de)凝固(gu)劑(ji)、防治小麥、蘋果、白菜等(deng)腐(fu)爛及食品(pin)防腐(fu)劑(ji)、制(zhi)取金屬鈉(na)(na)及其他鈉(na)(na)化(hua)(hua)合物、鋼鐵熱處理(li)介質等(deng)。在水處理(li)、公路除(chu)(chu)雪、制(zhi)冷(leng)冷(leng)藏(zang)等(deng)方面，鹽也(ye)有廣(guang)泛的(de)用(yong)(yong)途