大顆(ke)粒(li)鹽又(you)叫海鹽、粗鹽，或者日曬海鹽。顆(ke)粒(li)大（顆(ke)粒(li)大小(xiao)可根(gen)據(ju)客(ke)戶的(de)要(yao)求(qiu)研磨）。大顆(ke)粒(li)鹽主要(yao)用(yong)于熱敷和鍋爐(lu)水的(de)處(chu)理(li)。此(ci)外(wai)，還用(yong)于肥皂制造、陶瓷、玻璃(li)生(sheng)產(chan)、日用(yong)化(hua)工(gong)、石(shi)油(you)鉆探(tan)、鉆井工(gong)作液(ye)、完井液(ye)、石(shi)油(you)化(hua)工(gong)脫(tuo)水液(ye)、建筑行(xing)業(ye)(ye)(ye)(ye)早強(qiang)劑(ji)(ji)、生(sheng)產(chan)涂料(liao)的(de)凝固劑(ji)(ji)、橡膠(jiao)行(xing)業(ye)(ye)(ye)(ye)乳(ru)膠(jiao)凝結(jie)劑(ji)(ji)、造紙工(gong)業(ye)(ye)(ye)(ye)添(tian)加劑(ji)(ji)及(ji)廢紙張(zhang)脫(tuo)墨、化(hua)學(xue)(xue)(xue)工(gong)業(ye)(ye)(ye)(ye)的(de)無(wu)機化(hua)工(gong)原(yuan)料(liao)及(ji)硫酸根(gen)脫(tuo)除(chu)劑(ji)(ji)，我(wo)們知道(dao)化(hua)學(xue)(xue)(xue)行(xing)業(ye)(ye)(ye)(ye)上多種(zhong)化(hua)學(xue)(xue)(xue)產(chan)品都是以工(gong)業(ye)(ye)(ye)(ye)鹽為原(yuan)料(liao)生(sheng)產(chan)的(de)，不僅如此(ci)，工(gong)業(ye)(ye)(ye)(ye)鹽在其他(ta)行(xing)業(ye)(ye)(ye)(ye)上也都有(you)作用(yong)，那下(xia)面我(wo)們就(jiu)一起來探(tan)討一下(xia)工(gong)業(ye)(ye)(ye)(ye)鹽在化(hua)學(xue)(xue)(xue)工(gong)業(ye)(ye)(ye)(ye)上的(de)作用(yong)。

吸(xi)潮性：工(gong)(gong)業(ye)(ye)(ye)(ye)鹽(yan)(yan)的(de)(de)(de)表面通常(chang)(chang)被(bei)一層薄膜(mo)(mo)狀的(de)(de)(de)飽和鹽(yan)(yan)溶(rong)液(ye)所包圍(wei)，當這(zhe)層薄膜(mo)(mo)溶(rong)液(ye)的(de)(de)(de)蒸(zheng)氣壓(ya)比空(kong)氣中(zhong)(zhong)水蒸(zheng)氣分壓(ya)低的(de)(de)(de)時候，工(gong)(gong)業(ye)(ye)(ye)(ye)鹽(yan)(yan)就(jiu)會吸(xi)附空(kong)氣里(li)(li)(li)面的(de)(de)(de)水分而(er)(er)潮解，哪里(li)(li)(li)有(you)工(gong)(gong)業(ye)(ye)(ye)(ye)鹽(yan)(yan)，在染(ran)料(liao)(liao)工(gong)(gong)業(ye)(ye)(ye)(ye)常(chang)(chang)用(yong)的(de)(de)(de)原料(liao)(liao)如純堿是(shi)(shi)鹽(yan)(yan)為(wei)原料(liao)(liao)直(zhi)接生產出來的(de)(de)(de)，而(er)(er)且染(ran)料(liao)(liao)生產過程(cheng)中(zhong)(zhong)幾(ji)乎每個步驟都(dou)要耗用(yong)一定數量的(de)(de)(de)鹽(yan)(yan)；鹽(yan)(yan)，在我們(men)生活中(zhong)(zhong)很(hen)常(chang)(chang)見，但這(zhe)里(li)(li)(li)我們(men)介紹的(de)(de)(de)鹽(yan)(yan)卻不是(shi)(shi)家中(zhong)(zhong)廚(chu)房里(li)(li)(li)的(de)(de)(de)鹽(yan)(yan)，合肥工(gong)(gong)業(ye)(ye)(ye)(ye)鹽(yan)(yan)，而(er)(er)是(shi)(shi)工(gong)(gong)業(ye)(ye)(ye)(ye)上(shang)常(chang)(chang)用(yong)到的(de)(de)(de)鹽(yan)(yan)——工(gong)(gong)業(ye)(ye)(ye)(ye)鹽(yan)(yan)。

當然，這只是(shi)在工(gong)(gong)(gong)業(ye)鹽(yan)(yan)被暴(bao)露在空氣中(zhong)(zhong)才會(hui)出現(xian)(xian)的(de)(de)現(xian)(xian)象，密閉(bi)在包裝袋中(zhong)(zhong)與(yu)周圍空氣隔絕(jue)的(de)(de)其他鹽(yan)(yan)是(shi)不會(hui)出現(xian)(xian)潮解的(de)(de)。工(gong)(gong)(gong)業(ye)鹽(yan)(yan)八大(da)的(de)(de)用(yong)途：在輕工(gong)(gong)(gong)業(ye)中(zhong)(zhong)在制肥皂中(zhong)(zhong)，為(wei)(wei)保持溶液有合適(shi)的(de)(de)粘度，工(gong)(gong)(gong)業(ye)鹽(yan)(yan)廠(chang)家，常常加(jia)入鹽(yan)(yan)；在制革工(gong)(gong)(gong)業(ye)需要(yao)大(da)量(liang)(liang)的(de)(de)皮質(zhi)，原料(liao)皮在貯運過程中(zhong)(zhong)，工(gong)(gong)(gong)業(ye)鹽(yan)(yan)多少錢(qian)一(yi)噸，為(wei)(wei)防(fang)止或抑制微生(sheng)物的(de)(de)侵蝕，需要(yao)經過防(fang)腐處理，以免降低皮的(de)(de)質(zhi)量(liang)(liang)。我們知道化(hua)學(xue)行業(ye)上多種化(hua)學(xue)產(chan)品都是(shi)以工(gong)(gong)(gong)業(ye)鹽(yan)(yan)為(wei)(wei)原料(liao)生(sheng)產(chan)的(de)(de)，不僅如(ru)此，工(gong)(gong)(gong)業(ye)鹽(yan)(yan)在其他行業(ye)上也都有作用(yong)，那下面我們就一(yi)起來探討一(yi)下工(gong)(gong)(gong)業(ye)鹽(yan)(yan)在化(hua)學(xue)工(gong)(gong)(gong)業(ye)上的(de)(de)作用(yong)。