Cobalt | |
| Formula | Co |
| Structure | |
| Description | A black powder. |
| Uses | Manufacture cobalt salts, in nuclear technology. (60)Cobalt. |
| Registry Numbers and Inventories. | |
| CAS | 7440-48-4 |
| EC (EINECS/ELINCS) | 231-158-0 |
| EC Index Number | 027-001-00-9 |
| EC Class | Sensitising; Dangerous for the Environment |
| RTECS | GF8750000 |
| RTECS class | Tumorigen; Mutagen |
| UN (DOT) | 3089 |
| Merck | 12,2488 |
| Beilstein/Gmelin | 49017 (G) |
| Swiss Giftliste 1 | G-6530 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | Co2 |
| Formula mass | 58.93 |
| Melting point, °C | 1495.0 |
| Boiling point, °C | 2870 |
| Density | 8.9 g/cm3 (20 C) |
| Solubility in water | Insoluble |
| Heat of vaporization | 369.5 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. |
| Handling | Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Keep container tightly closed. 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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. |
| 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 | Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation. |
| Stability | Stable under normal temperatures and pressures. |
| Incompatibilities | Pyrophoric cobalt decomposes acetylene in the cold and the metal becomes incandescent. Fused ammonium nitrate can react explosively with powdered cobalt. Pyrophoric cobal, a black powder, burns brilliantly when exposed to air. |
| Decomposition | Oxides of cobalt. |
| Fire. | ||||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. | |||
| Fire potential | This chemical is flammable. | |||
| Hazards | the dust of | |||
| Health. | |
| Exposure limit(s) | TLV: 0.02 mg/m3 (as TWA) A3 (ACGIH 1997). MAK: class III A2 (1996) OSHA PEL: TWA 0.1 mg/m3 NIOSH REL: TWA 0.05 mg/m3 NIOSH IDLH: 20 mg/m3 (as Co) |
| Carcinogin | G-A3, I-2B, CP65 |
| Poison_Class | 3 |
| Exposure effects | Repeated exposure may cause sensitization dermatitis. Repeated exposure may cause allergic respiratory reaction (asthma). Chronic inhalation of dust may lead to restricted pulmonary function and interstitial fibrosis. |
| Ingestion | May cause gastrointestinal irritation with nausea, vomiting and diarrhea. |
| Inhalation | Causes respiratory tract irritation. May cause asthmatic attacks due to allergic sensitization of the respiratory tract. May cause asthma and shortness of breath. |
| Skin | Causes skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. |
| Eyes | Causes eye irritation. May cause conjunctivitis. |
First aid |
|
| Ingestion | If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately. |
| Inhalation | Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear. |
| Skin | Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. |
| Eyes | Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Transport. | ||
| UN number | 3089 | |
| Response guide | 170 | |
| Hazard class | 4.1 | |
| Packing Group | II; III | |
| USCG CHRIS Code | COT | |