Safety data for thionyl chloride
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Toxicity data
Risk phrases
Safety phrases
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for it. General
Synonyms: sulfur chloride oxide, sulfurous oxychloride, sulfinyl chloride,
sulfurous dichloride, thionyl dichloride
Molecular formula: SOCl2
CAS No: 7719-09-7
EINECS No: 231-748-8
Annex I Index No: 016-015-00-0
Physical data
Appearance: colourless, pale yellow or reddish liquid
with a suffocating odour
Melting point: -104 C
Boiling point: 76 C
Vapour density: 4.6 (air = 1)
Vapour pressure: 97 mm Hg at 20 C
Density (g cm-3): 1.64
Flash point:
Explosion limits:
Autoignition temperature:
Water solubility: decomposes
Stability
Reacts violently with water. Incompatible with most common
metals, strong reducing agents, strong bases, alcohols, amines.
Toxicology
Poison. May be fatal if inhaled. Causes severe burns.
May cause serious eye damage. Typical TLV 1 ppm STEL.
(The meaning of any abbreviations which appear in this section
is given
here.)
IHL-RAT LD50 500 ppm/1h
(The meaning of any risk phrases which appear in this section is
given here.)
R14 R20 R22 R29 R35.
Transport information
(The meaning of any UN hazard codes which appear in this section
is given
here.)
UN No 1836. Hazard class 8.0. Packing group I. Personal protection
Safety glasses, gloves, good ventilation.
(The meaning of any safety phrases which appear in this section
is given here.)
S26 S36 S37 S39 S45.