Bromoform
- Tribromomethane
- Methenyl tribromide
Bromoform | |
| |
| Formula | CHBr3 |
| Structure | |
| Description | Colorless to yellow liquid with a sweet, suffocating, chloroform-like odor. |
| Uses | Used for synth of pharmaceuticals, used in shipbuilding, aircraft, and aerospace industries, used in fire extinguishers. |
| Registry Numbers and Inventories. | |
| CAS | 75-25-2 |
| EC (EINECS/ELINCS) | 200-854-6 |
| EC Index Number | 602-007-00-X |
| EC Class | Toxic; Irritant; Dangerous for the Environment |
| EC Risk Phrase | R 23 36/38 51/53 |
| EC Safety Phrase | S 28 45 61 |
| RTECS | PB5600000 |
| RTECS class | Tumorigen; Drug; Mutagen; Human Data |
| UN (DOT) | 2515 |
| Merck | 13,1404 |
| Beilstein/Gmelin | 1731048 |
| Beilstein Reference | 4-01-00-00082 |
| RCRA | U225 |
| Swiss Giftliste 1 | G-1302 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | CHBr3 |
| Formula mass | 252.73 |
| Melting point, °C | 9.2 |
| Boiling point, °C | 149.5 |
| Vapor pressure, mmHg | 5 |
| Vapor density (air=1) | 8.7 |
| Saturation Concentration | 6600 ppm (0.66%) at 20 C; 7400 ppm (0.74%) at 25 C (calculated) |
| Critical temperature | 402 |
| Critical pressure | 56.45 |
| Density | 2.8912 g/cm3 (20 C) |
| Solubility in water | < 1 mg/ml |
| Viscosity | 1.73 cp (35 C) |
| Surface tension | 41.53 g/s2 @ 20 C |
| Refractive index | 1.6005 (20 C) |
| Partition coefficient, pKow | 2.40 |
| Heat of vaporization | 39.00 kJ/mol |
| Heat of combustion | -546 kJ/mol |
| Hazards and Protection. | |
| Storage | Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from metals. Do not store in metal containers. Keep away from strong bases. |
| WHMIS | D1B |
| Handling | Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse. |
| 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 | A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. |
| Small spills/leaks | Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation. |
| Stability | Stable at room temperature in closed containers under normal storage and handling conditions. |
| Incompatibilities | Strong oxidizing agents, strong acids. |
| Decomposition | Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, hydrogen bromide. |
| Fire. | ||||
| Flash Point,°C | 83 | |||
| Upper exp. limit, % | 35.3 | |||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Use extinguishing media appropriate to the surrounding fire. Substance is noncombustible. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire. Do NOT get water inside containers. For large fires, use water spray, fog or regular foam. For small fires, use dry chemical, carbon dioxide, water spray or regular foam. Cool containers with flooding quantities of water until well after fire is out. | |||
| Fire potential | Nonflammable. | |||
| Hazards | May decompose to produce toxic gases and vapor such as hydrogen bromide and bromine. | |||
| Combustion products | Toxic gases and vapors (such as hydrogen bromide and bromine) may be released in a fire involving bromoform. | |||
| NFPA | Health | 2 | ||
| Flammability | 0 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | TLV: 0.5 ppm; 5.2 mg/m3 (skin) (ACGIH 1993-1993). OSHA PEL: TWA 0.5 ppm (5 mg/m3) skin NIOSH REL: TWA 0.5 ppm (5 mg/m3) skin NIOSH IDLH: 850 ppm |
| Carcinogin | G-A3, CP65 |
| Poison_Class | 3 |
| Exposure effects | Repeated exposure may cause central nervous system damage. Effects may be delayed. |
| Ingestion | May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage. May cause central nervous system depression. Human fatalities have been reported from acute poisoning. |
| Inhalation | Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. Causes respiratory tract irritation. May cause liver and kidney damage. May cause narcotic effects in high concentration. Can produce delayed pulmonary edema. |
| Skin | Causes skin irritation. May be absorbed through the skin in harmful amounts. |
| Eyes | Causes eye irritation. Lachrymator. May cause chemical conjunctivitis. |
First aid |
|
| Ingestion | Do NOT induce vomiting. 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. |
| Inhalation | Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. |
| Skin | Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. |
| Eyes | Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. Do NOT allow victim to rub or keep eyes closed. |
| Transport. | ||
| UN number | 2515 |  |
| Response guide | 159 | |
| Hazard class | 6.1 | |
| Packing Group | III | |
| USCG CHRIS Code | BRO | |
| HS Code | 2903 30 36 | |
| Std. Transport # | 4925104 | |