Carbon tetrachloride

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Carbon tetrachloride
Tetrachlormethan.svg
Carbon-tetrachloride-3D-vdW.png
IUPAC name Tetrachloromethane
Other names Tetrachloromethane, Benziform, Benzinoform, Carbon chloride, Carbon tet, Freon 10, Halon 104, Methane tetrachloride, Perchloromethane, Tetraform, Tetrasol
Identifiers
CAS number 56-23-5
PubChem 5943
EC number 200-262-8
KEGG C07561
ChEBI CHEBI:27385
RTECS number FG4900000
SMILES ClC(Cl)(Cl)Cl
Properties
Molecular formula CCl4
Molar mass 153.82 g mol-1
Appearance colourless liquid
Odor ether-like odor
Density 1.5867 g cm−3 (liquid)

1.831 g cm−3 at −186 °C (solid)
1.809 g cm−3 at −80 °C (solid)

Melting point

-22.92 °C, 250 K, -9 °F

Boiling point

76.72 °C, 350 K, 170 °F

Solubility in water 0.081 g/100 mL (25 °C)
Solubility soluble in alcohol, ether, chloroform, benzene, naphtha, CS2
log P 2.64
Vapor pressure 11.94 kPa at 20 °C
kH 2.76x10-2 atm-cu m/mol
Refractive index (nD) 1.4601
Structure
Crystal structure Monoclinic
Molecular shape Tetrahedral
Hazards
MSDS ICSC 0024
EU classification Carc. Cat. 3
Toxic (T)
Dangerous for the environment (N)
EU Index 602-008-00-5
NFPA 704

NFPA 704.svg

0
3
0
 
R-phrases R23/24/25, R40, R48/23, R59, R52/53
S-phrases (S1/2), S23, S36/37, S45, S59, S61
Flash point Not flammable
Autoignition
temperature
982 °C
Thermochemistry
Std enthalpy of
formation
ΔfHo298
−135 kJ·mol−1
Standard molar
entropy
So298
216 J·mol−1·K−1
Related compounds
Other cations Silicon tetrachloride
Germanium tetrachloride
Tin tetrachloride
Lead tetrachloride
Related chloromethanes Chloromethane
Dichloromethane
Chloroform
Related compounds Tetrafluoromethane
Tetrabromomethane
Tetraiodomethane
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Carbon tetrachloride structure

Carbon tetrachloride, also known as carbon tet or Freon 10, is a chemical compound. Its chemical formula is CCl4. It contains carbon in its +4 oxidation state and chloride ions.

Properties[change | change source]

It is a colorless liquid. It smells like ether. It evaporates quite quickly. It can dissolve fats and oils as well as other stuff such as iodine. It doesn't burn, but it does make phosgene when heated to a high tempature.

Preparation[change | change source]

It is made by reacting methane with chlorine. This reaction is similar to the burning of methane (reaction of methane with oxygen). Hydrogen chloride is a byproduct (left over substance). It used to be made by reacting carbon disulfide with chlorine. This reaction would produce sulfur(I) chloride.

Uses[change | change source]

The uses of carbon tetrachloride have diminished lately because it is known to be damage people's health. People think it might damage the ozone layer. Today, it is rarely used for anything.

Previously, was used in fire extinguishers. It was also used to make freon, used in dry cleaning and as a refrigerant.

Safety[change | change source]

Carbon tetrachloride is very poisonous to the liver, the kidneys and the nervous system; it might also cause cancer.

Related pages[change | change source]