Bromoform
Bromoform is an organic compound with the chemical formula CHBr3. It is a colorless liquid at room temperature, with a high refractive index and a very high density. Its sweet odor is similar to that of chloroform. It is one of the four haloforms, the others being fluoroform, chloroform, and iodoform. It is a brominated organic solvent. Currently its main use is as a laboratory reagent. It is very slightly soluble in water (one part bromoform in 800 parts water) and is miscible with alcohol, benzene, chloroform, ether, petroleum ether, acetone and oils.
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A bottle of bromoform with some in the adjacent beaker | |||
| Names | |||
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| Preferred IUPAC name
Tribromomethane | |||
Other names
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| Identifiers | |||
3D model (JSmol) |
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| Abbreviations |
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| 1731048 | |||
| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| DrugBank | |||
| ECHA InfoCard | 100.000.777 | ||
| EC Number |
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| 49500 | |||
| KEGG | |||
| MeSH | bromoform | ||
PubChem CID |
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| RTECS number |
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| UNII | |||
| UN number | 2515 | ||
CompTox Dashboard (EPA) |
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| Properties | |||
| CHBr3 | |||
| Molar mass | 252.731 g·mol−1 | ||
| Appearance | Colorless liquid | ||
| Density | 2.89 g/cm3 | ||
| Melting point | 8.69 °C; 47.64 °F; 281.84 K | ||
| Boiling point | 149.40 °C; 300.92 °F; 422.55 K | ||
| 3.2 g L−1 (at 30 °C) | |||
| log P | 2.435 | ||
| Vapor pressure | 670 Pa (at 20.0 °C) | ||
Henry's law constant (kH) |
17 μmol Pa−1 kg−1 | ||
| Acidity (pKa) | 13.7 | ||
| -82.60·10−6 cm3/mol | |||
Refractive index (nD) |
1.595 | ||
| Thermochemistry | |||
Heat capacity (C) |
130.5 J K−1 mol−1 | ||
Std enthalpy of formation (ΔfH⦵298) |
6.1–12.7 kJ mol−1 | ||
Std enthalpy of combustion (ΔcH⦵298) |
−549.1–−542.5 kJ mol−1 | ||
| Hazards | |||
| GHS labelling: | |||
| Danger | |||
| H302, H315, H319, H331, H411 | |||
| P261, P273, P305+P351+P338, P311 | |||
| NFPA 704 (fire diamond) | |||
| Lethal dose or concentration (LD, LC): | |||
LD50 (median dose) |
933.0 mg kg−1 (oral, rat) | ||
LDLo (lowest published) |
1400 mg/kg (mouse, oral) 1147 mg/kg (rat, oral) | ||
LC50 (median concentration) |
1151 ppm (mammal) | ||
LCLo (lowest published) |
4282 ppm (rat, 4 hr) 7000 ppm (dog, 1 hr) | ||
| NIOSH (US health exposure limits): | |||
PEL (Permissible) |
TWA 0.5 ppm (5 mg/m3) [skin] | ||
REL (Recommended) |
TWA 0.5 ppm (5 mg/m3) [skin] | ||
IDLH (Immediate danger) |
850 ppm | ||
| Related compounds | |||
Related alkanes |
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| Supplementary data page | |||
| Bromoform (data page) | |||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |||
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