Safety data for 1,1,2,2-tetrachloroethane

General

Synonyms: sym-tetrachloroethane
Molecular formula: C₂H₂Cl₄
CAS No: 79-34-5
EC No: 201-197-8

Physical data

Appearance: colourless to light yellow liquid with a chloroform-like odour
Melting point: -43 C
Boiling point: 142 - 146 C
Vapour density: 5.8
Vapour pressure: 8 mm Hg at 20 C
Specific gravity: 1.586
Flash point: none
Explosion limits:
Autoignition temperature:
Water solubility: 2.9 g/l at 20 C
Octanol/water partition coefficient (log P_ow): 2.39

Stability

Stable. Incompatible with strong oxidizing agents, strong bases. Reacts violently with sodium, potassium, nitrates, 2,4-dinitrophenyl disulphide.

Toxicology

Mutagen, carcinogen, reproductive hazard. Very toxic. Powerful CNS depressant and liver poison. May cause death within 12 hours of exposure. May cause serious eye damage. May cause long-term harm. Readily absorbed through the skin. Lachrymator. Irritant.

Toxicity data
(The meaning of any abbreviations which appear in this section is given here.)
ORL-RAT LD50 200 mg kg^-1
IHL-MUS LC50 4.5 mg/l/2h

Risk phrases
(The meaning of any risk phrases which appear in this section is given here.)
R26 R27 R41 R51 R53.

Environmental information

Toxic to aquatic organisms - may cause long-term damage. Not readily biodegradable.

Transport information

(The meaning of any UN hazard codes which appear in this section is given here.)
UN No 1702. IATA class 6.1. IATA packing group II.

Personal protection

Safety glasses, gloves and good ventilation.

Safety phrases
(The meaning of any safety phrases which appear in this section is given here.)
S38 S45 S61.

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