Dibromochloromethane

Structural formula
General
Surname	Dibromochloromethane
other names	Chlorodibromomethane; Monochlorodibromomethane;
Molecular formula	CHBr 2 Cl
Brief description	colorless to yellowish liquid with a chloroform-like odor
External identifiers / databases
EC number	204-704-0
ECHA InfoCard	100.004.277
PubChem	31296
Wikidata	Q411773
properties
Molar mass	208.28 g mol −1
Physical state	liquid
density	2.45 g cm −3 (20 ° C)
Melting point	−22 ° C
boiling point	123-125 ° C
Vapor pressure	7.38 hPa (25 ° C)
solubility	heavy in water (2.7 g l −1 at 20 ° C); soluble in alcohol, ether, acetone, benzene and other organic solvents;
Refractive index	1.547 (20 ° C)
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 302-315-319-335
	P: 261-280-301 + 312-302 + 352-305 + 351 + 338
Toxicological data	370 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Dibromochloromethane is a chemical compound from the group of aliphatic saturated halogenated hydrocarbons and trihalomethanes .

Occurrence

Dibromochloromethane is found in swimming pools as a by-product of the reaction of chlorine with organic substances. Small amounts are also produced by algae in the sea.

Extraction and presentation

Dibromochloromethane can be obtained by phase transfer catalysis of chloroform , bromoform and benzyltriethylammonium chloride with sodium hydroxide .

properties

Dibromochloromethane is a colorless to yellowish liquid with a chloroform- like odor, which is sparingly soluble in water.

use

Dibromochloromethane can be used to study bromochlorocarbene under phase transfer conditions. It used to be used as an intermediate product in the manufacture of flame retardants and coolants.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Entry on dibromochloromethane in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
^ ^A ^b Safe Drinking Water Committee, Board on Toxicology and Environmental Health Hazards, Assembly of Life Sciences, National Research Council: Disinfectants and disinfectant by-products (= Drinking water and health . Volume 7 ). National Academy Press, Washington DC 1987, ISBN 0-309-03741-7 ( page 111 in Google Book Search).
↑ ^a ^b Data sheet dibromochloromethane, 98% from Sigma-Aldrich , accessed on October 8, 2011 ( PDF ).
↑ Halogen organic compounds in swimming pool water (PDF; 269 kB)
^ Agency for Toxic Substances and Disease Registry: Toxic Substances Portal - Bromoform & Dibromochloromethane
^ R. Alan Jones: Quaternary ammonium salts. Their use in phase-transfer catalyzed reactions . Academic Press, San Diego CA et al. 2000, ISBN 0-12-389171-X ( page 25 in the Google book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Entry on dibromochloromethane in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .

[CLS-2] A ^b Safe Drinking Water Committee, Board on Toxicology and Environmental Health Hazards, Assembly of Life Sciences, National Research Council: Disinfectants and disinfectant by-products (= Drinking water and health . Volume 7 ). National Academy Press, Washington DC 1987, ISBN 0-309-03741-7 ( page 111 in Google Book Search).

[Sigma-3] Data sheet dibromochloromethane, 98% from Sigma-Aldrich , accessed on October 8, 2011 ( PDF ).

[4] Halogen organic compounds in swimming pool water (PDF; 269 kB)

[5] Agency for Toxic Substances and Disease Registry: Toxic Substances Portal - Bromoform & Dibromochloromethane

[quat-6] R. Alan Jones: Quaternary ammonium salts. Their use in phase-transfer catalyzed reactions . Academic Press, San Diego CA et al. 2000, ISBN 0-12-389171-X ( page 25 in the Google book search).