Calcium carbonate CAS#471-34-1
Calcium carbonate, with the chemical formula CaCO3, is an inorganic compound found in nature as calcite, aragonite, and vaterite. It is a white solid that is insoluble in water but soluble in acid. Widely used as a filler and coating pigment in paper and plastics, calcium carbonate also serves as a primary ingredient in the production of cement and lime. Known for its high purity and chemical stability, it is utilized in pharmaceuticals, food additives, and as a dietary calcium supplement. Its versatility makes it an essential component in various industrial applications.
Calcium carbonate CAS#471-34-1
| Calcium carbonate Chemical Properties |
| Melting point | 825 ??C |
| Boiling point | 800 ??C |
| density | 2.93 g/mL at 25 ??C (lit.) |
| refractive index | 1.6583 |
| storage temp. | Store at +5??C to +30??C. |
| solubility | 5 M HCl: 0.1?M at?20???C, clear, colorless |
| form | random crystals |
| color | White-beige to slightly beige-gray |
| Specific Gravity | 2.93 |
| PH | 9.91(1 mM solution);9.91(10 mM solution);9.91(100 mM solution); |
| Odor | Odorless |
| PH Range | 8 |
| Water Solubility | Insoluble |
| ??max | ??: 260 nm Amax: ??0.09 ??: 280 nm Amax: ??0.06 |
| Merck | 14,1657 |
| BRN | 8008338 |
| Solubility Product Constant (Ksp) | pKsp: 8.54 |
| Exposure limits | NIOSH: TWA 10 mg/m3; TWA 5 mg/m3 |
| Dielectric constant | 6.1??Ambient?? |
| Stability: | Stable. Incompatible with acids, fluorine, ammonium salts, alum. |
| InChIKey | VTYYLEPIZMXCLO-UHFFFAOYSA-L |
| CAS DataBase Reference | 471-34-1(CAS DataBase Reference) |
| EPA Substance Registry System | Calcium carbonate (471-34-1) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 37/38-41-36/38-36 |
| Safety Statements | 26-36/37/39-37/39-37 |
| OEB | B |
| OEL | TWA: 10 mg/m3 (total) |
| WGK Germany | – |
| RTECS | FF9335000 |
| TSCA | Yes |
| HS Code | 28365000 |
| Hazardous Substances Data | 471-34-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 6450 mg/kg LD50 dermal Rat > 2000 mg/kg |
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