Home Categories Chemical Reagents Tetrabromomethane
A7693412

Tetrabromomethane , 98% , 558-13-4

Synonym(s):
Carbon tetrabromide

CAS NO.:558-13-4

Empirical Formula: CBr4

Molecular Weight: 331.63

MDL number: MFCD00000117

EINECS: 209-189-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: 88-90 °C(lit.)
Boiling point: 190 °C(lit.)
Density  3,42 g/cm3
vapor pressure  40 mm Hg ( 96 °C)
refractive index  1.5942
Flash point: 190°C
storage temp.  Store below +30°C.
solubility  soluble in Chloroform
form  Crystalline Solid
color  White to off-white
Water Solubility  insoluble
BRN  1732799
Exposure limits ACGIH: TWA 0.1 ppm; STEL 0.3 ppm
NIOSH: TWA 0.1 ppm(1.4 mg/m3); STEL 0.3 ppm(4 mg/m3)
Dielectric constant 7(22.0℃)

Description and Uses

Carbon tetrabromide is considered a highly toxic chemical, may be fatal if inhaled, swallowed, or absorbed through skin. It is metabolized in vitro to produce carbon monoxide but the in vivo significance has not been established. Under anaerobic reducing conditions it forms complexes with ferrous cytochrome P450. Carbon monoxide is detected as a metabolic product of the interaction. Carbon tetrabromide’s production and use in organic syntheses may result in its release to the environment through various waste streams. Carbon tetrabromide has been isolated from red algae, Asparagopsis toxiformis, found in the ocean near Hawaii. It was detected in water from treated chlorinated seawater used for drinking at oil platforms. Occupational exposure to carbon tetrabromide may occur through inhalation and dermal contact with this compound at workplaces where it is produced or used. The general population may be exposed to carbon tetrabromide via ingestion of drinking water. Acute exposures to high concentrations may cause upper respiratory tract irritation and injury to lungs, liver (hepatotoxicity) and kidneys (nephrotoxicity). Chronic exposure effects at very low levels will be almost entirely limited to liver injury. It is a potent lachrymator even at low exposure concentrations. Although carbon tetrabromide may release bromine ions during metabolism, clinical bromism is not expected to occur.

Used to a limited extent as an intermediate in organic synthesis

Safety

Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H302-H315-H318-H335
Precautionary statements  P261-P264-P280-P301+P312-P302+P352-P305+P351+P338
Hazard Codes  Xi,T+,N,Xn
Risk Statements  37/38-41-36-26-52/53-22
Safety Statements  26-36-45-27-24-61
RIDADR  UN 2516 6.1/PG 3
OEB B
OEL TWA: 0.1 ppm (1.4 mg/m3), STEL: 0.3 ppm (4 mg/m3)
WGK Germany  3
RTECS  FG4725000
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29033036

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