基本化(hua)(hua)學(xue)工(gong)(gong)業(ye)(ye)主要產品(pin)(pin)中(zhong)的(de)鹽酸、燒堿(jian)、純堿(jian)、氯化(hua)(hua)銨(an)、氯氣等(deng)主要是用(yong)工(gong)(gong)業(ye)(ye)鹽為原(yuan)料(liao)(liao)生(sheng)產的(de)。此外，還用(yong)于肥皂制(zhi)(zhi)造、陶瓷(ci)、玻璃生(sheng)產、日用(yong)化(hua)(hua)工(gong)(gong)、石油鉆(zhan)探(tan)、鉆(zhan)井工(gong)(gong)作液(ye)、完井液(ye)、石油化(hua)(hua)工(gong)(gong)脫(tuo)水液(ye)、建筑行(xing)業(ye)(ye)早強劑(ji)(ji)、生(sheng)產涂料(liao)(liao)的(de)凝固(gu)劑(ji)(ji)、橡膠行(xing)業(ye)(ye)乳膠凝結劑(ji)(ji)、造紙(zhi)工(gong)(gong)業(ye)(ye)添加劑(ji)(ji)及(ji)(ji)廢紙(zhi)張脫(tuo)墨、化(hua)(hua)學(xue)工(gong)(gong)業(ye)(ye)的(de)無機化(hua)(hua)工(gong)(gong)原(yuan)料(liao)(liao)及(ji)(ji)硫酸根(gen)脫(tuo)除(chu)劑(ji)(ji)，褐藻酸鈉的(de)凝固(gu)劑(ji)(ji)、防治小麥、蘋(pin)果、白(bai)菜等(deng)腐(fu)爛及(ji)(ji)食品(pin)(pin)防腐(fu)劑(ji)(ji)、制(zhi)(zhi)取(qu)金屬鈉及(ji)(ji)其(qi)他(ta)鈉化(hua)(hua)合物、鋼鐵熱處理介質等(deng)。在水處理、公(gong)路除(chu)雪(xue)、制(zhi)(zhi)冷冷藏等(deng)方面，鹽也(ye)有廣(guang)泛的(de)用(yong)途。