Calcium carbonate
- Calcite
- Chalk
- Limestone
- Marble chips
Calcium carbonate | |
| |
| Formula | CaCO3 |
| Structure | |
| Description | Gray to tan solid. |
| Registry Numbers and Inventories. | |
| CAS | 1317-65-3 |
| EC (EINECS/ELINCS) | 215-279-6 |
| RTECS | EV9580000 |
| RTECS class | Other |
| Beilstein/Gmelin | 8544 (G) |
| Canada DSL/NDSL | NDSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | CCaO3 |
| Formula mass | 100.1 |
| Melting point, °C | 1340 |
| Density | 2.71 g/cm3 |
| Solubility in water | 10 mg/L |
| Heat of fusion | 14.2 kJ/ol |
| Hazards and Protection. | |
| Storage | Store in a cool, dry place. |
| Handling | Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Avoid ingestion and inhalation. |
| Protection | Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin. |
| Respirators | Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. |
| Small spills/leaks | Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. |
| Stability | Stable at room temperature in closed containers under normal storage and handling conditions. |
| Incompatibilities | Acids, aluminum, strong oxidizers, magnesium. |
| Decomposition | Carbon monoxide, carbon dioxide. |
| Fire. | ||||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire. | |||
| Health. | |
| Exposure limit(s) | NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp) OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) |
| Exposure effects | |
| Ingestion | Low hazard for usual industrial handling. |
| Inhalation | Dust is irritating to the respiratory tract. Low hazard for usual industrial handling. May cause liver abnormalities. |
| Skin | Dust causes mechanical irritation. |
| Eyes | Dust may cause mechanical irritation. |
First aid |
|
| Ingestion | If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid. |
| Inhalation | Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear. |
| Skin | Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. |
| Eyes | Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Transport. |