碳酸(suan)鈣是一(yi)種無機化(hua)合物(wu),化(hua)學式(shi)為CaCO?,俗稱灰石(shi)(shi)(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)(shi)(shi)灰石(shi)(shi)(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)(shi)(shi)粉、大(da)理(li)石(shi)(shi)(shi)(shi)(shi)(shi)等。碳酸(suan)鈣呈中性,基本上(shang)(shang)不溶(rong)(rong)于(yu)(yu)(yu)水,溶(rong)(rong)于(yu)(yu)(yu)鹽酸(suan)。它是地(di)球(qiu)上(shang)(shang)常見(jian)物(wu)質之一(yi),存在于(yu)(yu)(yu)霰(xian)石(shi)(shi)(shi)(shi)(shi)(shi)、方解石(shi)(shi)(shi)(shi)(shi)(shi)、白堊(e)、石(shi)(shi)(shi)(shi)(shi)(shi)灰巖(yan)、大(da)理(li)石(shi)(shi)(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)(shi)(shi)灰華等巖(yan)石(shi)(shi)(shi)(shi)(shi)(shi)內(nei),亦為動物(wu)骨骼(ge)或外殼(ke)的主要成分。碳酸(suan)鈣也是重要的建筑材料,工業(ye)上(shang)(shang)用途甚廣。
海南碳酸鈣價格由于重(zhong)質碳(tan)酸鈣的(de)(de)(de)沉降(jiang)體積比輕質碳(tan)酸鈣的(de)(de)(de)沉降(jiang)體積小(xiao),所以(yi)(yi)稱之(zhi)為(wei)重(zhong)質碳(tan)酸鈣。性質:白色粉末。無臭(chou)、無味。露置空(kong)氣中(zhong)無變化(hua),比重(zhong)2.710。熔點(dian)1339℃。幾乎不溶于水(shui)在含有銨鹽或三氧(yang)化(hua)二鐵(tie)的(de)(de)(de)水(shui)中(zhong)溶解,不溶于醇。遇稀醋酸、稀鹽酸、稀硝(xiao)酸發生(sheng)(sheng)泡沸(fei),并(bing)溶解。加(jia)熱(re)分解為(wei)氧(yang)化(hua)鈣(CaO)和二氧(yang)化(hua)碳(tan)(CO?)。采(cai)用不同粉碎加(jia)工設備,可生(sheng)(sheng)產出:400目(mu)(mu)(mu)、500目(mu)(mu)(mu)、600目(mu)(mu)(mu)、800目(mu)(mu)(mu)、1000目(mu)(mu)(mu)、1250目(mu)(mu)(mu)、2500目(mu)(mu)(mu)、5000目(mu)(mu)(mu)各種粒徑的(de)(de)(de)重(zhong)質碳(tan)酸鈣,又因造紙、涂料、顏料的(de)(de)(de)特種需要還可以(yi)(yi)研磨(mo)生(sheng)(sheng)成2μm以(yi)(yi)下重(zhong)質鈣。