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LC4634 Oxalyl chloride

for synthesis


Order number Packaging Quantity Price €
AC31634 Glass bottle 25 ml 17.28
AC31634 Glass bottle 100 ml 43.2
AC31634 Glass bottle 500 ml 184.5


Product information
Synonyms Oxalic acid dichloride
Hill Formula C2Cl2O2
Chemical formula ClCOCOCl
HS Code 2917 19 90
EC number 201-200-2
Molar mass 126.92 g/mol
CAS number 79-37-8


Chemical and physical data
Solubility (20 °C) (decomposition)
Melting point -12 °C
Molar mass 126.92 g/mol
Density 1.48 g/cm3 (20 °C)
Boiling point 63 – 64 °C
Vapor pressure 200 hPa (20 °C)
Flash point >100 °C


Safety information according to GHS
Hazard Statement(s) H331: Toxic if inhaled.
H335: May cause respiratory irritation.
H314: Causes severe skin burns and eye damage.
EUH014: Reacts violently with water.
EUH029: Contact with water liberates toxic gas.
Precautionary Statement(s) P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
Signal Word Danger
Hazard Pictogram(s)
RTECS KI2950000
Storage class Materials that form flammble gases in contact with water
WGK WGK 1 slightly water endangering
Disposal 11
Organic acid halides, anhydrides and isocyanates can be added dropwise to an excess of methanol (Cat. No. 822283) to convert them into the corresponding methyl esters or methyl carbamates. If necessary, neutralize with sodium hydroxide solution (Cat. No. 105587). Fill into container A.


Safety information
R Phrase R 14-23-29-34-37
Reacts violently with water.Toxic by inhalation.Contact with water liberates toxic gas.Causes burns.Irritating to respiratory system.
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 toxic, corrosive
Hazard Symbol



Transport information
Declaration (transport by sea) IMDG-Code UN 3129 WATER-REACTIVE LIQUID, CORROSIVE, N.O.S.(OXALYLCHLORIDE), 4.3 (8), I
Declaration (transport by air) IATA-DGR UN 3129 WATER-REACTIVE LIQUID, CORROSIVE, N.O.S.(OXALYLCHLORIDE), 4.3 (8), I


Assay (argentometric) ≥ 98 %
Density (d 20 °C/ 4 °C) 1.470 – 1.480
Identity (IR) passes test


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