Carbon tetrachloride

Carbon tetrachloride

Names
Preferred IUPAC name Tetrachloromethane
Other names Benzinoform carbon(IV) chloride carbon tet Carboneum Tetrachloratum / Carbonei tetrachloridum Carboneum Chloratum / Carbonei chlorurum chloride of carbon Freon-10 Halon-104 methane tetrachloride methyl tetrachloride Necatorina perchloromethane Refrigerant-10 Tetrachloretum Carbonicum Tetrachlorocarbon Tetraform Tetrasol
Identifiers
CAS Number	56-23-5 Y
3D model (JSmol)	Interactive image
Abbreviations	CTC, TCM, PCM, R-10
Beilstein Reference	1098295
ChEBI	CHEBI:27385 Y
ChEMBL	ChEMBL44814 Y
ChemSpider	5730 Y
ECHA InfoCard	100.000.239
EC Number	200-262-8
Gmelin Reference	2347
KEGG	C07561 Y
PubChem CID	5943
RTECS number	FG4900000
UNII	CL2T97X0V0 Y
UN number	1846
CompTox Dashboard (EPA)	DTXSID8020250
InChI InChI=1S/CCl4/c2-1(3,4)5 Y Key: VZGDMQKNWNREIO-UHFFFAOYSA-N Y InChI=1/CCl4/c2-1(3,4)5 Key: VZGDMQKNWNREIO-UHFFFAOYAV
SMILES ClC(Cl)(Cl)Cl
Properties
Chemical formula	CCl4
Molar mass	153.81 g·mol−1
Appearance	Colourless liquid
Odor	chloroform-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 (−9.26 °F; 250.23 K)
Boiling point	76.72 °C (170.10 °F; 349.87 K)
Solubility in water	0.097 g/100 mL (0 °C) 0.081 g/100 mL (25 °C)
Solubility	Soluble in alcohol, ether, chloroform, benzene, naphtha, CS2, formic acid
log P	2.64
Vapor pressure	11.94 kPa at 20 °C
Henry's law constant (kH)	2.76×10−2 atm·m3/mol
Magnetic susceptibility (χ)	−66.60×10−6 cm3/mol
Thermal conductivity	0.1036 W/m·K (300 K)[1]
Refractive index (nD)	1.4607
Viscosity	0.86 mPa·s[2]
Dipole moment	0 D
Structure
Crystal structure	Monoclinic
Coordination geometry	Tetragonal
Molecular shape	Tetrahedral
Dipole moment	0 D
Thermochemistry
Heat capacity (C)	132.6 J/mol·K
Std molar entropy (S⦵298)	214.39 J/mol·K
Std enthalpy of formation (ΔfH⦵298)	−95.6 kJ/mol
Gibbs free energy (ΔfG⦵)	−87.34 kJ/mol[3]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	extremely toxic to the liver and kidneys, potential occupational carcinogen, harmful to the ozone layer
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H302, H311, H331, H351, H372, H412, H420
Precautionary statements	P201, P202, P260, P261, P264, P270, P271, P273, P280, P281, P301+P310, P302+P352, P304+P340, P308+P313, P311, P312, P314, P321, P322, P330, P361, P363, P403+P233, P405, P501, P502
NFPA 704 (fire diamond)	3 0 0
Flash point	non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)	7749 mg/kg (oral, mouse); 5760 mg/kg (oral, rabbit); 2350 mg/kg (oral, rat)[5]
LC50 (median concentration)	5400 ppm (mammal) 8000 ppm (rat, 4 hr) 9526 ppm (mouse, 8 hr)[6]
LCLo (lowest published)	1000 ppm (human) 20,000 ppm (guinea pig, 2 hr) 38,110 ppm (cat, 2 hr) 50,000 ppm (human, 5 min) 14,620 ppm (dog, 8 hr)[6]
NIOSH (US health exposure limits):
PEL (Permissible)	TWA 10 ppm C 25 ppm 200 ppm (5-minute maximum peak in any 4 hours)[4]
REL (Recommended)	Ca ST 2 ppm (12.6 mg/m3) [60-minute][4]
IDLH (Immediate danger)	200 ppm[4]
Safety data sheet (SDS)	ICSC 0024
Related compounds
Other anions	Carbon tetrafluoride Carbon tetrabromide Carbon tetraiodide
Other cations	Silicon tetrachloride Germanium tetrachloride Tin tetrachloride Lead tetrachloride
Related chloromethanes	Chloromethane Dichloromethane Trichloromethane
Supplementary data page
Carbon tetrachloride (data page)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Carbon tetrachloride, also known by many other names (such as carbon tet for short and tetrachloromethane, also recognised by the IUPAC) is a chemical compound with the chemical formula CCl₄. It is a non-flammable, dense, colourless liquid with a "sweet" chloroform-like odour that can be detected at low levels. It was formerly widely used in fire extinguishers, as a precursor to refrigerants and as a cleaning agent, but has since been phased out because of environmental and safety concerns. Exposure to high concentrations of carbon tetrachloride can affect the central nervous system and degenerate the liver and kidneys. Prolonged exposure can be fatal.

Tradenames include: Carbon-Tet, Katharin (Germany, 1890s),^[7] Benzinoform, Carbona and Thawpit in the cleaning industry, Halon-104 in firefighting, Refrigerant-10 in HVACR, and Necatorina and Seretin as a medication.