工業鹽(yan)，是化學工業的最基本(ben)原(yuan)料之(zhi)一(yi)，主要成分有氯化鈉、亞硝酸鈉等，被稱為“化學工業之(zhi)母(mu)”。基本(ben)化學工業主要產品中的鹽(yan)酸、燒(shao)堿、純(chun)堿、氯化銨、氯氣等主要是用工業鹽(yan)為原(yuan)料生產的。

　　基(ji)本化(hua)學工(gong)(gong)(gong)業(ye)(ye)(ye)主要(yao)產品(pin)中的鹽酸(suan)、燒堿、純堿、氯(lv)化(hua)銨、氯(lv)氣等主要(yao)是用(yong)工(gong)(gong)(gong)業(ye)(ye)(ye)鹽為(wei)原料(liao)生產的。此外，還用(yong)于肥(fei)皂制造(zao)(zao)、陶瓷(ci)、玻璃生產、日用(yong)化(hua)工(gong)(gong)(gong)、石油鉆探、鉆井工(gong)(gong)(gong)作液(ye)(ye)、完井液(ye)(ye)、石油化(hua)工(gong)(gong)(gong)脫(tuo)水液(ye)(ye)、建筑行(xing)(xing)業(ye)(ye)(ye)早強劑、生產涂料(liao)的凝(ning)固劑、橡(xiang)膠行(xing)(xing)業(ye)(ye)(ye)乳(ru)膠凝(ning)結劑、造(zao)(zao)紙(zhi)工(gong)(gong)(gong)業(ye)(ye)(ye)添(tian)加劑及廢紙(zhi)張脫(tuo)墨、化(hua)學工(gong)(gong)(gong)業(ye)(ye)(ye)的無(wu)機化(hua)工(gong)(gong)(gong)原料(liao)及硫酸(suan)根脫(tuo)除(chu)劑，褐藻酸(suan)鈉(na)的凝(ning)固劑、防治小麥、蘋果、白菜等腐爛(lan)及食品(pin)防腐劑、制取金屬(shu)鈉(na)及其他鈉(na)化(hua)合物、鋼(gang)鐵熱處(chu)理介(jie)質等。在水處(chu)理、公路除(chu)雪、制冷冷藏(zang)等方(fang)面，鹽也有廣泛(fan)的用(yong)途(tu)