碳酸钙 无水级, ACS, ≥99%
Calcium carbonate
品牌：桔子
产品编号：V32574
CAS号：471-34-1
分子式：CaCO3
分子量：100.09
MDL：MFCD00010906
| 产品名称 : | 碳酸钙 |
|---|---|
| 英文名称 : | Calcium carbonate |
| 参考名称 : | 碳酸钙 |
| 参考英文名称 : | Calcium carbonate |
| CAS号 : | 471-34-1 |
| 分子式 : | CaCO3 |
| 分子量 : | 100.09 |
| SMILES : | [O-]C([O-])=O.[Ca+2] |
| MDL NO : | MFCD00010906 |
| PubChem CID : | 10112 |
| InChIKey : | VTYYLEPIZMXCLO-UHFFFAOYSA-L |
| 储存条件 : | RT |
| 参考别名 : | 碳酸钙 |
实验性质
| 外观 / 形态 : | Calcium carbonate appears as white, odorless powder or colorless crystals. Practically insoluble in water. Occurs extensive in rocks world-wide. Ground calcium carbonate (CAS: 1317-65-3) results directly from the mining of limestone. The extraction process keeps the carbonate very close to its original state of purity and delivers a finely ground product either in dry or slurry form. Precipitated calcium carbonate (CAS: 471-34-1) is produced industrially by the decomposition of limestone to calcium oxide followed by subsequent recarbonization or as a by-product of the Solvay process (which is used to make sodium carbonate). Precipitated calcium carbonate is purer than ground calcium carbonate and has different (and tailorable) handling properties.；Dry Powder; Large Crystals; Liquid; Wet Solid; Other Solid; Wet Solid; Other Solid; Dry Powder; Wet Solid; Other Solid; Large Crystals; CBI; Dry Powder; Wet Solid; Dry Powder; Large Crystals; Wet Solid; Other Solid; Liquid; Dry Powder; Liquid; Liquid; Other Solid；WHITE POWDER OR PELLETS.；White crystalline or amorphous, odourless and tasteless powder；White, odorless powder or colorless crystals.；White, odorless powder or colorless crystals. Calcium carbonate is soluble in concentrated mineral acids.；White, odorless powder or colorless crystals; [NIOSH] |
|---|---|
| 颜色 / 形态 : | White hexagonal crystals or powder (Calcite); white orthrombic crystals or powder (Argonite); colorless hexagonal crystals (vaterite) |
| 熔点 : | 1517 to 2442 °F (Decomposes) (NIOSH, 2024)；1517-2442 °F (Decomposes)；1517-2442 °F (decomposes) |
| 沸点 : | Decomposes；Decomposes (NIOSH, 2024)；decomposes |
| 密度 : | 2.7 to 2.95 (NIOSH, 2024)；2.7-2.95；2.8 g/cm³；2.93 @25 °C；Bulk density: 40-100 lb/cubic ft; screen analysis: usually 200 to 325 mesh |
| 折射率 : | Index of Refraction: 1.7216 (300 nm); 1.6584 (589 nm); 1.6503 (750 nm) /Calcite/；Index of refraction: 1.5145 (300 nm); 1.4864 (589 nm); 1.4828 (750 nm) /Aragonite/ |
| 溶解性 : | Solubility Product constant: 3.36X10-9 at 25 °C；ALKALI HYDROXIDE REDUCES ITS SOLUBILITY；INSOL IN ALCOHOL；SOLUBILITY IN H2O INCR BY AMMONIUM SALT & BY CO2；Practically insoluble in water; soluble in dilute acids；For more Solubility (Complete) data for CALCIUM CARBONATE (6 total), please visit the HSDB record page. |
| 蒸气压 : | 0 mmHg (approx)；0 mmHg (approx) (NIOSH, 2024) |
| 热分解说明 : | 825 °C；When heated to decomposition it emits acrid smoke and irritating vapors.；At about 825 °C it decomposes into calcium oxide and carbon dioxide |
| 气味 : | Odorless |
| pH : | pH = 8 to 9 |
计算性质
| 极性表面积 (TPSA) : | 63.2 Ų |
|---|---|
| 氢键供体数 : | 0 |
| 氢键受体数 : | 3 |
| 可旋转键数 : | 0 |
| 精确质量 : | 99.9473347 Da |
| 重原子数 : | 5 |
| 分子复杂度 : | 18 |
资料来源：碳酸钙产品资料页；来源页标注 PubChem CID 10112，资料日期 2026-10-11。
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