Product Description of Calcium carbonate CAS#471-34-1
Calcium carbonate (CaCO₃), alternatively named calcite, limestone, chalk or marble powder, is a common inorganic mineral filler with stable chemical inertness, high whiteness and excellent dispersibility. Beyond industrial filling modification, it is also extensively applied in plastic, rubber, coating, papermaking, construction and cosmetic industries.
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Chemical Properties of Calcium carbonate CAS#471-34-1
| 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 |
| λmax | λ: 260 nm Amax: ≤0.09 λ: 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 of Calcium carbonate CAS#471-34-1
| 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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Product Application of Calcium carbonate CAS#471-34-1
m-Xylene is primarily used for the synthesis of isophthalic acid, which is widely used in high-performance polyester resins, PET modified materials, coatings and adhesives. It is also extensively applied as a high-grade solvent for industrial paints, printing inks, rubber, pharmaceuticals, pesticide intermediates and fine chemical industries
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