Home Categories Organic Chemistry Bromochloromethane
A1230212

Bromochloromethane , 98% , 74-97-5

CAS NO.:74-97-5

Empirical Formula: CH2BrCl

Molecular Weight: 129.38

MDL number: MFCD00000880

EINECS: 200-826-3

Update time: 2022-07-08

PRODUCT Properties

Melting point: −88 °C(lit.)
Boiling point: 68 °C(lit.)
Density  1.991 g/mL at 25 °C(lit.)
vapor density  4.5 (vs air)
vapor pressure  117 mm Hg ( 20 °C)
refractive index  n20/D 1.482(lit.)
Flash point: 11 °C
storage temp.  2-8°C
solubility  Soluble in acetone, alcohol, benzene, ether (Weast, 1986), and many other solvents, particularly chlorinated hydrocarbons.
Specific Gravity 1.991
Water Solubility  9 g/L (20 ºC)
BRN  1730801
Henry's Law Constant (x 10-3 atm?m3/mol): 1.44 at 25 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits NIOSH REL: TWA 200 ppm (1,050 mg/m3), IDLH 2,000 ppm; OSHA PEL: TWA 200 ppm; ACGIH TLV: TWA 200 ppm (adopted)
Dielectric constant 7.8(Ambient)
Stability: Stable, but may discolour in light. Incompatible with aluminium, magnesium, zinc, calcium, strong oxidizing agents.
LogP 1.410

Description and Uses

Chlorobromomethane is a clear, colorless topale yellow liquid with a chloroform-like odor. Odor threshold=400 ppm. Molecular weight=129.39; Specific gravity (H2O:1)=1.93; Boiling point=68.3℃; Freezing/Melting point=2 88℃; Vapor pressure=115 mmHg at20℃. Hazard Identification (based on NFPA 704 M RatingSystem): Health 2, Flammability 0, Reactivity 0. Insolublein water.

Fire fighting agent

Safety

Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H315-H318-H332-H335-H420
Precautionary statements  P261-P280-P305+P351+P338
Hazard Codes  Xi,N,Xn,T,F
Risk Statements  37/38-41-59-36/37/38-20-39/23/24/25-23/24/25-11-36/38
Safety Statements  26-39-59-37/39-45-36/37-16-7
RIDADR  UN 1887 6.1/PG 3
OEB A
OEL TWA: 200 ppm (1050 mg/m3)
WGK Germany  2
RTECS  PA5250000
Hazard Note  Irritant
HazardClass  6.1(b)
PackingGroup  III
HS Code  29034980
Toxicity LC50 (inhalation) for mice 15,850 mg/m3/8-h, rats 28,800 ppm/15-min (quoted, RTECS, 1985). Acute oral LD50 for rats 5,000 mg/kg, mice 4,300 mg/kg (quoted, RTECS, 1985).
IDLA 2,000 ppm

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