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LC5457 Thionyl chloride
for synthesis


Order number Packaging Quantity Price €
AC32457 Glass btl. pl.coat. 100 ml 11.88
AC32457 Glass btl. pl.coat. 500 ml 13.86
AC32457 Glass btl. pl.coat. 1 l 23.85
AC32457 Glass btl. pl.coat. 2.5 l 50.4


Product information
Synonyms Sulfurous acid dichloride
Hill Formula Cl2OS
Chemical formula SOCl2
HS Code 2812 10 95
EC number 231-748-8
Molar mass 118.97 g/mol
EC index number 016-015-00-0
CAS number 7719-09-7


Chemical and physical data
Solubility (20 °C) (rigorous decomposition)
Melting point -104.5 °C
Molar mass 118.97 g/mol
Density 1.64 g/cm3 (20 °C)
pH value (H2O) not applicable
Boiling point 76 °C (1013 hPa)
Vapor pressure 121 hPa (20 °C)
Refractive index 1.517 (20 °C, 589 nm)


Safety information
R Phrase R 14-20/22-29-35
Reacts violently with water.Harmful by inhalation and if swallowed.Contact with water liberates toxic gas.Causes severe burns.
S Phrase S 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Categories of danger harmful, corrosive
Hazard Symbol Corrosive
RTECS XM5150000
Storage class Non combustible, corrosive substances
WGK WGK 1 slightly water endangering
Disposal 24
Liquid inorganic halides and hydrolysis-sensitive reagents can be carefully stirred dropwise into ice-cool 10% sodium hydroxide solution (Cat. No. 105587) (caution: caustic gases!); container D or E.


Transport information
Declaration (transport by sea) IMDG-Code UN 1836 THIONYL CHLORIDE, 8, I, Segregation Group: 1 (Acids)
Declaration (transport by air) IATA-DGR UN 1836 THIONYL CHLORIDE, 8,


Toxicological data
LD 50 oral LD50 rat 324 mg/kg


Assay (argentometric) ≥ 99 %
Density (d 20 °C/ 4 °C) 1.635 – 1.638
Identity (IR) passes test



CAS number