Home Categories Organic Chemistry Tribromomethane
A7709912

Tribromomethane , Analysis standard , 75-25-2

Synonym(s):
Bromoform;Tribromomethane;Tribromomethane, Methane tribromide, Methyl tribromide

CAS NO.:75-25-2

Empirical Formula: CHBr3

Molecular Weight: 252.73

MDL number: MFCD00000128

EINECS: 200-854-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: 8 °C
Boiling point: 150 °C
Density  2.89 g/mL at 25 °C(lit.)
vapor density  8.7 (vs air)
vapor pressure  5 mm Hg ( 20 °C)
refractive index  n20/D 1.595(lit.)
Flash point: 148-150°C
storage temp.  Store at +15°C to +25°C.
solubility  water: soluble800 part(lit.)
pka 13.7(at 25℃)
form  Liquid
color  White to off-white
Odor Chloroform-like odor
Water Solubility  slightly soluble, 0.301 g/100 mL
Sensitive  Light Sensitive
Merck  14,1420
BRN  1731048
Henry's Law Constant 3.36 at 20.0 °C, 7.09 at 35.0 °C, 20.5 at 50.0 °C (equilibrium static cell, Wright et al., 1992)
Exposure limits NIOSH REL: TWA 0.5 ppm (5 mg/m3), IDLH 85e respiratory irritation (Patnaik, 1992).
Dielectric constant 4.4(20℃)
Stability: Stability May be an explosion hazard, especially when heated. Stable, but light-sensitive. Non-flammable. Incompatible with chemically active metals, strong bases. May contain ca 1% ethanol or 1-pentene (amylene) as a stabilizer.
InChIKey DIKBFYAXUHHXCS-UHFFFAOYSA-N
LogP 2.400

Description and Uses

Bromoform is a colorless (turns yellow onexposure to air) with a sweet-smelling, chloroform-likeodor. Odor threshold=0.447 ppm. Molecular weight =252.8; Specific gravity (H2O:1)=2.9; Boiling point =149.5 ℃; Freezing/Melting point=8.3 ℃ (to hexagonalcrystals); Vapor pressure=5 mmHg at 20 ℃. HazardIdentification (based on NFPA-704 M Rating System):Health 2, Flammability 0, Reactivity 0. Soluble in water;solubility=0.1% at 20 ℃.

Bromoform is a colorless to yellow liquid with a density about three times that of water. It has an odor and sweetish taste similar to chloroform and is not combustible. It has been used as a degreasing solvent, in chemical synthesis, and in fire extinguishers, and is no longer used as a sedative for children with whooping cough. Currently, bromoform is produced only in small amounts for use in laboratories and in geological and electronics testing.

Safety

Symbol(GHS) 
GHS02,GHS05,GHS06,GHS09
Signal word  Danger
Hazard statements  H226-H302-H314-H331-H411
Precautionary statements  P210-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  T,N,F
Risk Statements  23-36/38-51/53-22-39/23/24/25-23/24/25-11
Safety Statements  28-45-61-28A-36/37-16-7-26-63
OEB B
OEL TWA: 0.5 ppm (5 mg/m3) [skin]
RIDADR  UN 2515 6.1/PG 3
WGK Germany  3
RTECS  PB5600000
8-10
TSCA  Yes
HS Code  2903 39 19
HazardClass  6.1
PackingGroup  III
Toxicity LD50 s.c. in mice: 7.2 mmol/kg (Kutob, Plaa)
IDLA 850 ppm

RELATED PRODUCTS