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LC3945 Methacrylic acid

(stabilised with hydroquinone monomethyl ether) for synthesis


Order number Packaging Quantity Price €
AC30945 Glass bottle 100 ml  11.88
AC30945 Glass bottle 500 ml 16.29
AC30945 Glass bottle 2.5 l 42.75


Product information
Synonyms 2-Methylpropenoic acid
Hill Formula C4H6O2
Chemicalformula CH2C(CH3)COOH
HS Code 2916 13 00
EC number 201-204-4
Molar mass 86.09 g/mol
EC indexnumber 607-088-00-5
CAS number 79-41-4


Chemical and physical data
Ignition temperature 370 °C
Solubility 98 g/l (20 °C)
Melting point 15 °C
Molar mass 86.09 g/mol
Density 1.015 g/cm3 (20 °C)
pH value 2.0 – 2.2 (100 g/l, H2O, 20 °C)
Boiling point 161 °C (1013 hPa)
Vapor pressure < - 1 hPa (20 °C)
Explosion limit 1.6 – 8.7 %(V)
Flash point 77 °C
Refractive index 1.431 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H312: Harmful in contact with skin.
H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H335: May cause respiratory irritation.
Precautionary Statement(s) P260: Do not breathe vapour.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
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
Hazard Pictogram(s)

RTECS OZ2975000
Storage class 8 A Combustible substances, corrosive
WGK WGK 1 slightly water endangering
Disposal 4
Liquid organic acids or solutions should be diluted, if necessary, and carefully neutralized with sodium hydrogen carbonate (Cat. No. 106323) or with sodium hydroxide (Cat. No 106462). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535).


Safety information
R Phrase R 21/22-35
Harmful in contact with skin and if swallowed.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).
Categoriesofdanger harmful, corrosive
Hazard Symbol Corrosive


Transport information
Declaration (transport by sea) IMDG-Code UN 2531 METHACRYLIC ACID, STABILIZED, 8, II, Segregation Group: 1 (Acids)
Declaration (transport by air) IATA-DGR UN 2531 METHACRYLIC ACID, STABILIZED, 8, II


Toxicological data
LD 50 oral LD50 rat 1320 mg/kg


Assay (GC, area%) ≥ 99 %
Density (d 20 °C/ 4 °C) 1.013 – 1.015
Identity (IR) passes test


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