工(gong)(gong)業(ye)鹽，是化(hua)(hua)學(xue)工(gong)(gong)業(ye)的(de)最基本原(yuan)料之一，主(zhu)(zhu)要成分有氯化(hua)(hua)鈉(na)、亞(ya)硝酸鈉(na)等，被(bei)稱為“化(hua)(hua)學(xue)工(gong)(gong)業(ye)之母(mu)”。基本化(hua)(hua)學(xue)工(gong)(gong)業(ye)主(zhu)(zhu)要產品中(zhong)的(de)鹽酸、燒堿、純堿、氯化(hua)(hua)銨、氯氣等主(zhu)(zhu)要是用工(gong)(gong)業(ye)鹽為原(yuan)料生產的(de)。

　　基本化(hua)學(xue)工(gong)(gong)(gong)業(ye)主要產品中(zhong)的(de)鹽酸(suan)、燒堿(jian)、純堿(jian)、氯(lv)化(hua)銨、氯(lv)氣等主要是用(yong)工(gong)(gong)(gong)業(ye)鹽為原料生產的(de)。此外(wai)，還用(yong)于肥(fei)皂制(zhi)造、陶瓷、玻璃(li)生產、日用(yong)化(hua)工(gong)(gong)(gong)、石油鉆(zhan)探、鉆(zhan)井工(gong)(gong)(gong)作液、完井液、石油化(hua)工(gong)(gong)(gong)脫(tuo)水液、建筑行(xing)業(ye)早(zao)強劑(ji)(ji)、生產涂料的(de)凝固(gu)劑(ji)(ji)、橡(xiang)膠行(xing)業(ye)乳膠凝結劑(ji)(ji)、造紙(zhi)工(gong)(gong)(gong)業(ye)添加劑(ji)(ji)及(ji)廢紙(zhi)張(zhang)脫(tuo)墨、化(hua)學(xue)工(gong)(gong)(gong)業(ye)的(de)無(wu)機(ji)化(hua)工(gong)(gong)(gong)原料及(ji)硫(liu)酸(suan)根脫(tuo)除劑(ji)(ji)，褐藻酸(suan)鈉(na)的(de)凝固(gu)劑(ji)(ji)、防治小麥、蘋果、白菜等腐爛及(ji)食品防腐劑(ji)(ji)、制(zhi)取金屬鈉(na)及(ji)其他鈉(na)化(hua)合(he)物、鋼(gang)鐵(tie)熱處理(li)介質等。在水處理(li)、公路除雪、制(zhi)冷(leng)冷(leng)藏等方面，鹽也有廣(guang)泛的(de)用(yong)途