基本化(hua)(hua)學(xue)工(gong)(gong)業(ye)(ye)主要(yao)產品中(zhong)的鹽(yan)酸(suan)、燒(shao)堿、純(chun)堿、氯化(hua)(hua)銨、氯氣(qi)等(deng)主要(yao)是用工(gong)(gong)業(ye)(ye)鹽(yan)為原料(liao)生(sheng)產的。此外(wai),還用于肥(fei)皂制(zhi)造(zao)、陶瓷、玻(bo)璃生(sheng)產、日(ri)用化(hua)(hua)工(gong)(gong)、石油(you)鉆探、鉆井工(gong)(gong)作液(ye)(ye)、完井液(ye)(ye)、石油(you)化(hua)(hua)工(gong)(gong)脫水液(ye)(ye)、建筑行業(ye)(ye)早強(qiang)劑(ji)(ji)、生(sheng)產涂料(liao)的凝(ning)固劑(ji)(ji)、橡膠(jiao)行業(ye)(ye)乳膠(jiao)凝(ning)結(jie)劑(ji)(ji)、造(zao)紙(zhi)工(gong)(gong)業(ye)(ye)添加劑(ji)(ji)及廢(fei)紙(zhi)張脫墨、化(hua)(hua)學(xue)工(gong)(gong)業(ye)(ye)的無機化(hua)(hua)工(gong)(gong)原料(liao)及硫酸(suan)根脫除劑(ji)(ji),褐藻酸(suan)鈉的凝(ning)固劑(ji)(ji)、防(fang)治小(xiao)麥、蘋果、白菜等(deng)腐爛(lan)及食品防(fang)腐劑(ji)(ji)、制(zhi)取金屬(shu)鈉及其他鈉化(hua)(hua)合(he)物、鋼鐵熱處理介質(zhi)等(deng)。在水處理、公(gong)路除雪、制(zhi)冷冷藏等(deng)方面,鹽(yan)也(ye)有廣泛的用途。