Beryllium
- Glucinium
Beryllium | |
| |
| Formula | Be |
| Structure | |
| Description | A grayish-white hard light metal. |
| Uses | Structural material in space technology, in gyroscopes, computer parts, inertial guidance systems, as additive in solid-propellant rocket fuels, beryllium-copper alloys. |
| Registry Numbers and Inventories. | |
| CAS | 7440-41-7 |
| EC (EINECS/ELINCS) | 231-150-7 |
| EC Index Number | 004-001-00-7 |
| EC Class | Carcinogenic Category 2; Very toxic; Toxic; Irritant; Sensitising |
| RTECS | DS1750000 |
| RTECS class | Tumorigen; Mutagen |
| UN (DOT) | 1567 |
| Merck | 12,1201 |
| Beilstein/Gmelin | 16256 (G) |
| RCRA | P015 |
| Swiss Giftliste 1 | G-1998 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | Be |
| Formula mass | 9.01 |
| Melting point, °C | 1278 |
| Boiling point, °C | 2970 |
| Density | 1.85 g/cm3 (20 C) |
| Solubility in water | Insoluble |
| Thermal expansion | 9.8E-6/K (20 C) |
| Heat of fusion | 9.8 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from organic halogens. Keep away from acids. Do not store near alkaline substances. Keep away from strong bases. |
| Handling | Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. 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. Remove all sources of ignition. Provide ventilation. |
| Stability | Stable at room temperature in closed containers under normal storage and handling conditions. |
| Incompatibilities | Oxidizing agents, phosphorus, lithium, caustics, carbontetrachloride, chlorinated hydrocarbons, Contact with acids causes evolution of flammable hydrogen gas.. |
| Decomposition | Melting and dross handling or powdering operations can emit airborne dusts or fumes. |
| Fire. | ||||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dust can be an explosion hazard when exposed to heat or flame. Extinguishing media: Do NOT use carbon dioxide. Do NOT use halogenated agents. Use approved class D extinguishing agents or smother with dry sand, clay, or sodium bicarbonate. DO NOT USE WATER! | |||
| Fire potential | Slightly flammable. Moderate in form of dust or powder. | |||
| Hazards | Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. | |||
| Combustion products | Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. | |||
| NFPA | Health | 3 | ||
| Flammability | 1 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | NIOSH REL: Ca Not to exceed 0.0005 mg/m3 See Appendix A OSHA PEL: TWA 0.002 mg/m3 C 0.005 mg/m3 0.025 mg/m3 [30-minute maximum peak] IDLH Ca [4 mg/m3 (as Be)] |
| Carcinogin | G-A1, I-1, N-1, CP65 |
| Poison_Class | 1* |
| Exposure effects | Chronic exposure to beryllium may cause berylliosis,a hypersensitivity pulmonary reaction. Symptoms may include delayed cutaneous hypersensitivity, depressed helper/suppressor T cell ratios |
| Ingestion | May cause gastrointestinal irritation with nausea, vomiting and diarrhea. |
| Inhalation | Causes respiratory tract irritation. Inhalation of fumes may cause metal fume fever, which is characterized by flu-like symptoms with metallic taste, fever, chills, cough, weakness, chest pain, muscle pain and increased white blood cell count. If heated, dust or fume may cause respiratory tract irritation. |
| Skin | Causes skin irritation. May cause contact dermatitis. |
| Eyes | Causes eye irritation. May cause conjunctivitis and corneal inflammation. |
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 | Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask. |
| Skin | Get medical aid immediately. 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 | 1567 | |
| Response guide | 134 | |
| Hazard class | 6.1 | |
| Packing Group | II | |
| USCG CHRIS Code | BEM | |
| Std. Transport # | 4923523 | |