Bromoform
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| Bromoform | |
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| Chemical name | Tribromomethane |
| Chemical formula | CHBr3 |
| Molecular mass | 252.73 g/mol |
| CAS number | [75-25-2] |
| Density | 2.899 g/cm³ at 15 °C |
| Melting point | 8.0 °C |
| Boiling point | 149 °C |
| SMILES | C(Br)(Br)Br |
| Disclaimer and references | |
Bromoform (CHBr3) is a pale yellowish liquid with a sweet odor, a halomethane. Small amounts are formed naturally by plants in the ocean. It is somewhat soluble in water and readily evaporates into the air. Most of the bromoform that enters the environment is formed as byproducts when chlorine is added to drinking water to kill bacteria.
Only small quantities of bromoform are currently produced industrially in the United States. In the past, it was used as a solvent and flame retardant, but now it is mainly used as a laboratory reagent.
Bromoform is one of the trihalomethanes closely related with fluoroform, chloroform and iodoform.
Bromoform is used for heavy mineral (ilmenite, rutile, zircon, garnet) separation from sediments. The sample is treated with Bromoform (CHBr3) in a separating funnel. Heavy minerals settle down and light ones float. The separated heavy and light are collected in filter papers. Methanol is used for washing. Sample is dried and then weighed. Bromoform is used because its specific gravity is intermediate .
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