碳酸钙 AR,GR,SP,PT99% 石灰石 调节剂 471-34-1

中文名碳酸钙英文名Calcium carbonate别名白垩云石轻钙大白粉石灰石碳酸钙碳酸鈣大理石白垩粉沉降碳酸钙苛化碳酸钙轻质碳酸钙碳酸钙无水沉淀碳酸钙活性碳酸钙重质碳酸钙轻质活性碳酸钙C.I.颜料白18碳酸钙,99.95-100.05%,PT(基准试剂)英文别名ChalkakadamaalbacaralbafilalbaglosaeromattLimestoneC.I. 77220albacar5970PARIS WHITECalcium carbonatePRECIPITATED CHALKOyster Shell PowderC.I. Pigment White 18Calcium Carbonate LightCalcium Carbonate HeavyWeightily Calcium CarbonateBiological Calcium CarbonateCAS471-34-113397-25-61317-65-3EINECS207-439-9化学式CCaO3分子量100.0869InChIInChI=1/CH2O3.Ca.2H/c2-1(3)4;;;/h(H2,2,3,4);;;/p-2/rCH2O3.CaH2/c2-1(3)4;/h(H2,2,3,4);1H2/p-2InChIKeyVTYYLEPIZMXCLO-UHFFFAOYSA-L密度2.93 g/mL at 25 °C (lit.)熔点825 °C沸点800 °C水溶性Insoluble溶解度5 m HCl: 0.1M在20 °C，澄清，无色折射率1.6583PH值9.91(1 mM solution);9.91(10 mM solution);9.91(100 mM solution);存储条件Store at +5°C to +30°C.稳定性稳定。与酸、氟、铵盐、明矾不相容。敏感性Easily absorbing moisture外观随机晶体比重2.93颜色White-beige to slightly beige-gray气味Odorless最大波长(λmax)['λ: 260 nm Amax: ≤0.09',, 'λ: 280 nm Amax: ≤0.06']Merck14,1657BRN8008338Ksp沉淀平衡常数pKsp: 8.54暴露限值NIOSH: TWA 10 mg/m3; TWA 5 mg/m3