Hexachloroethane

Hexachloroethane
Names
Preferred IUPAC name
Hexachloroethane
Other names
Carbon hexachloride, Ethane hexachloride, Perchloroethane, Sesquichloride of carbon
Identifiers
3D model (JSmol)
1740341
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.000.606 Edit this at Wikidata
EC Number
  • 200-666-4
26648
KEGG
UNII
  • InChI=1S/C2Cl6/c3-1(4,5)2(6,7)8 checkY
    Key: VHHHONWQHHHLTI-UHFFFAOYSA-N checkY
  • InChI=1/C2Cl6/c3-1(4,5)2(6,7)8
    Key: VHHHONWQHHHLTI-UHFFFAOYAD
  • ClC(Cl)(Cl)C(Cl)(Cl)Cl
Properties
C2Cl6
Molar mass 236.74 g/mol
Appearance colorless crystals[1]
Odor camphor-like[1]
Density 2.091 g/mL at 25 °C
Melting point sublimes
Boiling point 183 to 185 °C (361 to 365 °F; 456 to 458 K)
0.005% (22.2 °C)[1]
Vapor pressure 0.2 mmHg (20 °C)[1]
-112.7·10−6 cm3/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Probable carcinogen, dangerous CNS depressant
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Flash point noncombustible[1]
Lethal dose or concentration (LD, LC):
4460 mg/kg (rat, oral)
4970 mg/kg (guinea pig, oral)

[2]

NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 1 ppm (10 mg/m3) [skin][1]
REL (Recommended)
 Ca TWA 1 ppm (10 mg/m3) [skin][1]
IDLH (Immediate danger)
 Ca [300 ppm][1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Hexachloroethane (perchloroethane) is an organochlorine compound with the chemical formula (CCl3)2. It is a white or colorless solid at room temperature with a camphor-like odor.[3] It has been used by the military in smoke compositions, such as base-eject smoke munitions (smoke grenades).

Hexachloroethane was discovered along with carbon tetrachloride by Michael Faraday in 1820. Faraday obtained it by chlorinating ethylene.[4]

  1. ^ a b c d e f g h NIOSH Pocket Guide to Chemical Hazards. "#0316". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ "Hexachloroethane". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  3. ^ Snedecor, Gayle (1999). "Hexachloroethane". In Kroschwitz, Jacqueline I. (ed.). Kirk-Othmer Concise Encyclopedia of Chemical Technology (4th ed.). New York: John Wiley & Sons, Inc. p. 428. ISBN 978-0471419617.
  4. ^ Faraday, Michael (1859). Experimental Researches in Chemistry and Physics. Taylor and Francis. p. 46. ISBN 978-0-85066-841-4.