Chemical diagram
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Spacefill model
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Names | |
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Preferred IUPAC name
Bromo(dichloro)methane | |
Other names
Bromodichloromethane
Dichlorobromomethane | |
Identifiers | |
3D model (JSmol)
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1697005 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.000.779 |
EC Number |
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25941 | |
KEGG | |
PubChem CID
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RTECS number |
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UNII | |
UN number | 2810 3082 |
CompTox Dashboard (EPA)
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Properties | |
CHBrCl2 | |
Molar mass | 163.8 g/mol |
Appearance | Colorless liquid |
Density | 1.980 g/cm3 |
Melting point | −57 °C (−71 °F; 216 K) |
Boiling point | 90 °C (194 °F; 363 K) |
4.5 g/L at 20 °C | |
-66.3·10−6 cm3/mol | |
Refractive index (nD)
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1.4964 |
Hazards | |
GHS labelling: | |
Danger | |
H302, H315, H319, H335, H350 | |
P201, P202, P261, P264, P270, P271, P280, P281, P301+P312, P302+P352, P304+P340, P305+P351+P338, P308+P313, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Bromodichloromethane is a trihalomethane with formula CHBrCl2. It is a colorless, nonflammable liquid which will dissolve in water, or evaporate in air.[1] Most of the chemical is produced through the chlorine disinfection process,[1] and as a result it can occur in municipally-treated drinking water.[2] It is also produced in small quantities by algae in the oceans.[1] According to the CDC, levels normal in drinking water are not known to cause health problems, but it has been classified by the US EPA as a probable human carcinogen.
Bromodichloromethane has formerly been used as a flame retardant, and a solvent for fats and waxes and because of its high density for mineral separation.[citation needed] Now it is only used as a reagent or intermediate in organic chemistry.[citation needed] In the US it is only produced in small quantities, which are used for these chemical reasons.[1] For example, it can be used to produce phenyl(bromodichloromethyl)mercury, which is widely used in the production of dichlorocarbene.[3] It can be prepared by treating a mixture of chloroform and bromoform with triethyl-benzylammonium chloride and sodium hydroxide.[3]