工(gong)(gong)(gong)業(ye)鹽(yan)(yan)，是(shi)化學工(gong)(gong)(gong)業(ye)的(de)最基本(ben)(ben)原料之(zhi)(zhi)一，主要成分(fen)有氯化鈉、亞硝酸(suan)鈉等，被(bei)稱為(wei)“化學工(gong)(gong)(gong)業(ye)之(zhi)(zhi)母(mu)”。基本(ben)(ben)化學工(gong)(gong)(gong)業(ye)主要產品中的(de)鹽(yan)(yan)酸(suan)、燒堿、純堿、氯化銨(an)、氯氣等主要是(shi)用工(gong)(gong)(gong)業(ye)鹽(yan)(yan)為(wei)原料生(sheng)產的(de)。

　　基本化(hua)學工(gong)(gong)(gong)(gong)業(ye)(ye)主要產品(pin)中的(de)鹽酸、燒堿(jian)、純(chun)堿(jian)、氯化(hua)銨、氯氣等主要是(shi)用(yong)工(gong)(gong)(gong)(gong)業(ye)(ye)鹽為(wei)原(yuan)料生產的(de)。此外，還用(yong)于肥皂(zao)制(zhi)造、陶瓷(ci)、玻璃生產、日用(yong)化(hua)工(gong)(gong)(gong)(gong)、石油鉆探(tan)、鉆井(jing)工(gong)(gong)(gong)(gong)作液(ye)(ye)、完(wan)井(jing)液(ye)(ye)、石油化(hua)工(gong)(gong)(gong)(gong)脫水液(ye)(ye)、建筑行業(ye)(ye)早強劑(ji)(ji)、生產涂料的(de)凝固劑(ji)(ji)、橡膠(jiao)(jiao)行業(ye)(ye)乳(ru)膠(jiao)(jiao)凝結劑(ji)(ji)、造紙工(gong)(gong)(gong)(gong)業(ye)(ye)添(tian)加(jia)劑(ji)(ji)及(ji)廢紙張脫墨、化(hua)學工(gong)(gong)(gong)(gong)業(ye)(ye)的(de)無(wu)機(ji)化(hua)工(gong)(gong)(gong)(gong)原(yuan)料及(ji)硫(liu)酸根脫除劑(ji)(ji)，褐藻(zao)酸鈉(na)的(de)凝固劑(ji)(ji)、防治小麥、蘋果、白菜等腐爛及(ji)食(shi)品(pin)防腐劑(ji)(ji)、制(zhi)取金屬鈉(na)及(ji)其他鈉(na)化(hua)合物、鋼(gang)鐵熱(re)處理(li)介質等。在水處理(li)、公路除雪(xue)、制(zhi)冷(leng)冷(leng)藏等方(fang)面，鹽也有廣泛的(de)用(yong)途