碳(tan)酸(suan)鈣是一(yi)種無(wu)機化(hua)(hua)合(he)物(wu),化(hua)(hua)學式為CaCO?,俗稱灰(hui)石(shi)(shi)(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)(shi)(shi)灰(hui)石(shi)(shi)(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)(shi)(shi)粉(fen)、大(da)理石(shi)(shi)(shi)(shi)(shi)(shi)等。碳(tan)酸(suan)鈣呈中(zhong)性,基本上(shang)(shang)(shang)不溶(rong)于水,溶(rong)于鹽(yan)酸(suan)。它(ta)是地球上(shang)(shang)(shang)常見(jian)物(wu)質之(zhi)一(yi),存(cun)在于霰(xian)石(shi)(shi)(shi)(shi)(shi)(shi)、方解石(shi)(shi)(shi)(shi)(shi)(shi)、白(bai)堊、石(shi)(shi)(shi)(shi)(shi)(shi)灰(hui)巖、大(da)理石(shi)(shi)(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)(shi)(shi)灰(hui)華等巖石(shi)(shi)(shi)(shi)(shi)(shi)內(nei),亦(yi)為動物(wu)骨骼或外殼的主(zhu)要成(cheng)分。碳(tan)酸(suan)鈣也(ye)是重(zhong)要的建筑材料,工業上(shang)(shang)(shang)用途甚(shen)廣。
海南碳酸鈣價格由(you)于重(zhong)質(zhi)(zhi)碳酸(suan)(suan)(suan)鈣的(de)沉降體積(ji)比輕(qing)質(zhi)(zhi)碳酸(suan)(suan)(suan)鈣的(de)沉降體積(ji)小,所以(yi)(yi)稱之為(wei)重(zhong)質(zhi)(zhi)碳酸(suan)(suan)(suan)鈣。性質(zhi)(zhi):白色粉(fen)末。無臭(chou)、無味。露置空氣中無變化(hua),比重(zhong)2.710。熔點1339℃。幾(ji)乎不溶于水在含有銨鹽或(huo)三氧化(hua)二鐵的(de)水中溶解,不溶于醇。遇(yu)稀醋酸(suan)(suan)(suan)、稀鹽酸(suan)(suan)(suan)、稀硝(xiao)酸(suan)(suan)(suan)發生泡(pao)沸(fei),并溶解。加(jia)熱分解為(wei)氧化(hua)鈣(CaO)和(he)二氧化(hua)碳(CO?)。采用不同粉(fen)碎(sui)加(jia)工設備,可生產出: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(zhong)粒徑(jing)的(de)重(zhong)質(zhi)(zhi)碳酸(suan)(suan)(suan)鈣,又因造紙、涂料、顏料的(de)特(te)種(zhong)需要還可以(yi)(yi)研磨生成2μm以(yi)(yi)下重(zhong)質(zhi)(zhi)鈣。