1,1,1,2-Tetrachloroethane

1,1,1,2-Tetrachloroethane^[1]
Skeletal formula of 1,1,1,2-tetrachloroethane	Ball-and-stick model of 1,1,1,2-tetrachloroethane
Names
	Preferred IUPAC name 1,1,1,2-Tetrachloroethane
	Other names R-130a; acetylidene tetrachloride, asymmetrical tetrachloroethane
Identifiers
CAS Number	630-20-6 ;
3D model (JSmol)	Interactive image; Interactive image;
ChEBI	CHEBI:34024 ;
ChEMBL	ChEMBL155816 ;
ChemSpider	11911 ;
ECHA InfoCard	100.010.124
KEGG	C14705 ;
PubChem CID	12418;
UNII	0S5MKE574X ;
CompTox Dashboard (EPA)	DTXSID2021317 ;
	InChI InChI=1S/C2H2Cl4/c3-1-2(4,5)6/h1H2 Key: QVLAWKAXOMEXPM-UHFFFAOYSA-N ; InChI=1/C2H2Cl4/c3-1-2(4,5)6/h1H2 Key: QVLAWKAXOMEXPM-UHFFFAOYAE;
	SMILES C(C(Cl)(Cl)Cl)Cl; ClCC(Cl)(Cl)Cl;
Properties
Chemical formula	C2H2Cl4
Molar mass	167.84 g·mol−1
Appearance	Clear liquid
Density	1.5532 g/cm3
Melting point	−70.2 °C (−94.4 °F; 203.0 K)
Boiling point	130.5 °C (266.9 °F; 403.6 K)
Solubility in water	0.1% (20°C)
Vapor pressure	14 mmHg (25°C)
Hazards
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	Handle with caution in the workplace.
IDLH (Immediate danger)	N.D.
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

1,1,1,2-Tetrachloroethane is a chlorinated hydrocarbon. It is a colorless liquid with a sweet chloroform-like odor. It is used as a solvent and in the production of wood stains and varnishes. It is an isomer of 1,1,2,2-tetrachloroethane.

Production

1,1,1,2-Tetrachloroethane can be obtained by a two-step addition reaction of acetylene with chlorine (via dichloroethene), but this mainly produces 1,1,2,2-tetrachloroethane.

C₂H₂ + Cl₂ → C₂H₂Cl₂

C₂H₂Cl₂ + Cl₂ → C₂H₂Cl₄

It can be obtained directly by chlorination of 1,1,2-trichloroethane:^[3]

CHCl₂−CH₂Cl + Cl₂ → CCl₃−CH₂Cl + HCl

Safety

IARC has classified 1,1,1,2-tetrachloroethane as a possible carcinogen for humans in 2014.^[4]

References

^ "National Pollutant Inventory Substance Profile". Archived from the original on 2007-08-29. Retrieved 2007-07-19.
^ ^a ^b ^c ^d ^e NIOSH Pocket Guide to Chemical Hazards. "#0597". National Institute for Occupational Safety and Health (NIOSH).
^ Lawrance Waddams: The Petroleum chemicals Industry, S. 175.
^ IARC Monograph 106 – 1,1,1,2-Tetrachloroethane, 2014

[1] "National Pollutant Inventory Substance Profile". Archived from the original on 2007-08-29. Retrieved 2007-07-19.

[PGCH-2] NIOSH Pocket Guide to Chemical Hazards. "#0597". National Institute for Occupational Safety and Health (NIOSH).

[3] Lawrance Waddams: The Petroleum chemicals Industry, S. 175.

[4] IARC Monograph 106 – 1,1,1,2-Tetrachloroethane, 2014

[1]

[2]

[3]

[4]

Production

Safety

See also

References