Home Categories Organic Chemistry Carbon tetrachloride in methanol
A2404712

Carbon tetrachloride in methanol , 0.6mg/L, matrix: methanol , 56-23-5

Synonym(s):
ACT-2;Carbon tetrachloride solution;CCL4;Tetrachloromethane;Tetrachloromethane in dimethyl sulfoxide

CAS NO.:56-23-5

Empirical Formula: CCl4

Molecular Weight: 153.82

MDL number: MFCD00000785

EINECS: 200-262-8

Update time: 2022-07-08

PRODUCT Properties

Melting point: -23 °C
Boiling point: 76-77 °C(lit.)
Density  1.594 g/mL at 25 °C(lit.)
vapor density  5.32 (vs air)
vapor pressure  4.05 psi ( 20 °C)
refractive index  n20/D 1.460(lit.)
Flash point: −2 °F
storage temp.  2-8°C
solubility  Miscible with ethanol, benzene, chloroform, ether, carbon disulfide (U.S. EPA, 1985), petroleum ether, solvent naphtha, and volatile oils (Yoshida et al., 1983a).
form  Liquid
color  Clear colorless
Odor Ethereal, sweet, pungent odor detectable at 140 to 584 ppm (mean = 252 ppm)
Relative polarity 0.052
Odor Threshold 4.6ppm
Water Solubility  0.8 g/L (20 ºC)
λmax λ: 265 nm Amax: 1.0
λ: 270 nm Amax: 0.30
λ: 280 nm Amax: 0.07
λ: 290 nm Amax: 0.02
λ: 300-400 nm Amax: 0.01
Merck  13,1826
BRN  1098295
Henry's Law Constant 2.15 at 30 °C (headspace-GC, Sanz et al., 1997)
Exposure limits NIOSH REL: STEL 1 hour 2 ppm, IDLH 200 ppm; OSHA PEL: TWA 10 ppm, C 25 ppm, 5-minute/4-hour peak 200 ppm; ACGIH TLV: TWA 5 ppm.
Dielectric constant 2.2(20℃)
InChIKey VZGDMQKNWNREIO-UHFFFAOYSA-N
LogP 2.830

Description and Uses

Carbon tetrachloride is a manufactured chemical and does not occur naturally in the environment. It is produced by chlorination of a variety of low molecular weight hydrocarbons such as carbon disulfide, methane, ethane, propane, or ethylene dichloride and also by thermal chlorination of methyl chloride. Carbon tetrachloride is a precursor for chlorofluorocarbon (CFC) gases that have been used as aerosol propellant. A decrease in this use is occurring due to the agreement reached in the Montreal Protocol for the reduction of environmental concentrations of ozone-depleting chemicals, including carbon tetrachloride.

In the manufacture of chlorofluorocarbons, which in turn are primarily used as refrigerants; formerly used widely as a solvent, also as a grain fumigant and in fire extinguishers. Because of toxicity consumer uses have been discontinued and only industrial use remains.

Safety

Symbol(GHS) 
GHS06,GHS08
Signal word  Danger
Hazard statements  H301+H311+H331-H317-H351-H372-H412-H420
Precautionary statements  P273-P280-P301+P310-P302+P352+P312-P304+P340+P311-P502
Hazard Codes  T,N,F
Risk Statements  23/24/25-40-48/23-52/53-59-39/23/24/25-11-43
Safety Statements  23-36/37-45-59-61-16-7
OEL STEL: 2 ppm (12.6 mg/m3) [60-minute]
RIDADR  UN 1846 6.1/PG 2
WGK Germany  3
RTECS  FG4900000
8-9
HazardClass  6.1(a)
PackingGroup  II
HS Code  29031400
Toxicity LC50 for mice: 9528 ppm (Svirbely); LD50 in rats, mice, dogs (g/kg): 2.92, 12.1-14.4, 2.3 orally; LD50 in mice (g/kg): 4.1 i.p., 30.4 s.c. (IARC, 1979)
IDLA 200 ppm

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