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LC138 Acetic anhydride
for synthesis


Order number Packaging Quantity Price €
AC27138 Plastic bottle 1 l 20.25
AC27138 Plastic bottle 2.5 l 36.40
AC27138 Plastic container 25 l inquire


Product information
Hill Formula C4H6O3
Chemical formula (CH3CO)2O
HS Code 2915 24 00
EC number 203-564-8
Molar mass 102.08 g/mol
EC index number 607-008-00-9
CAS number 108-24-7


Chemical and physical data
Ignition temperature 330 °C
Solubility (20 °C) Hydrolysis,Risk of violent reaction.
Melting point -73 °C
Molar mass 102.08 g/mol
Density 1.08 g/cm3 (20 °C)
pH value 3 (10 g/l, H2O, 20 °C)
Boiling point 138 – 140.5 °C (1013 hPa)
Vapor pressure 4 hPa (20 °C)
Explosion limit 2.0 – 10.2 %(V)
Flash point 54 °C


Safety information according to GHS
Hazard Statement(s) H226: Flammable liquid and vapour.
H332: Harmful if inhaled.
H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H335: May cause respiratory irritation.
Precautionary Statement(s) P280: Wear protective gloves/protective clothing/eye protection/face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word Danger
Hhazard Symbol

Storage class 3 Flammable Liquids
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 10-20/22-34
Flammable.Harmful by inhalation and if swallowed.Causes 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
flammable, harmful, corrosive
Hhazard Symbol Corrosive


Transport information
Declaration (transport by sea) IMDG-Code UN 2789 ACETIC ACID, GLACIAL, 8 (3), II, Segregation Group: 1 (Acids)
Declaration (transport by air) IATA-DGR UN 2789 ACETIC ACID, GLACIAL, 8 (3), II


Toxicological data
LD 50 oral LD50 rat 1780 mg/kg
LD 50 dermal LD50 rabbit 4320 mg/kg


Assay (GC, area%) ≥ 98 %
Density (d 20 °C/ 4 °C) 1.080 – 1.082
Identity (IR) passes test


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