Acrylic ester used for polymer manufacturing and as a raw material for syntheses.

Molar Mass(g/mol): 86.09

Chemical formula:

Stoichiometric formula: C4H6O2
CAS number: 96-33-3

Technical Informations

Application Advice/Typical Applications

Methyl acrylate is used primarily for manufacturing homopolymers and copolymers. Methyl acrylate can be copolymerized for instance with acrylic acid and its salts, esters and acrylamide, with methacrylic acid, methacrylates, acrylonitrile, styrene, maleic acid esters, vinyl acetate, vinyl chloride, butadiene, unsaturated polyesters etc. Methyl acrylate is an important raw material and a starting material for many chemical syntheses.

Parameter Value, Unit
Appearance, form Transparent, colorless, clear liquid
Odor Typical, acrid, penetrating
Boiling point 80 °C
Melting point (-77) – (-75) °C
Vapour pressure at 0°C 3.08 kPa
Vapour pressure at 20°C 9.05 kPa
Vapour pressure at 50°C 34.0 kPa
Flash point (Closed cup) (-3) – (-2) °C
Flash point (Open cup) 2 – 3 °C
Explosion limit – upper at 126  °C 19.4 % v/v
Autoignition temperature 415 °C
Heat of evaporation at boiling point 384 kJ / kg
Heat of polymerization 950 kJ / kg
Heat of combustion 22504 kJ / kg
Specific heat of liquid at 20°C 2.01 kJ / kg.K
Density of liquid at 20°C 956 kg / m3
Vapour density (air=1) 2.9
Coefficient of cubic expansion 1.3 × 10-3
Refractive index at 20°C 1.402 – 1.404
Viscosity at 0°C 0.63 mPa.s
Viscosity at 20°C 0.49 mPa.s
Surface tension at 20°C 26 mN / m
Solubility ester in water 52 g / l
Solubility water in ester 22.5 g / l
Electrical conductivity 1.1 × 105 pS / m

Shipping and Storage

Methyl acrylate is transported in specially equipped railway cars or tanker trucks.
Transport containers are filled to a maximum of 91% of their capacity.

In order to prevent spontaneous polymerization, methyl acrylate must always be stored under air, never under inert gases. The air (oxygen) presence is required for a proper functionality of the stabilizer. Product storage temperature must not exceed 35°C. Under these conditions, a storage stability of one year can be expected. It is advisable to minimize the likelihood of methyl acrylate overstorage by a strict observance of the “first-in-first-out” storage principle. For storage periods extended over one month, it is advisable to replenish the dissolved oxygen content in the product by suitable aeration.
Stainless steel or aluminium is the recommended material for storage tanks and piping. Even though    methyl acrylate does not corrode carbon steel, there is a risk of product contamination if corrosion occurs. All metal made equipment (tanks, pumps, piping etc.) must be earthed.

All national laws and directives, as well as local regulations governing storage, handling, distribution and disposal of flammable liquids must be strictly observed. Avoid exposure to high temperatures, sparks, flame, light and frost. Keep separated from oxidizing materials. Keep the container tightly closed.

For additional detailed information see the brochure „SAFE HANDLING AND STORAGE OF ACRYLIC ESTERS“, issued by the European Basic Acrylic Monomers Manufacturers Association (EBAM).

Product Security/Health and Safety

Please refer to the Safety Data Sheet for safety information. 

For further information regarding this product please refer to:

Synthomer MDP,


Character Value Unit
Methyl acrylate min. 99.85
Methyl acetate max. 0.045
Alcohols max. 0.006
Methyl propionate max. 0.06
Other organic impurities max. 0.1
Water max. 0.05
Inhibitor (MEHQ) * 0.001 - 0.002
Color max. 5 APHA 
Acidity (as Acrylic acid) max. 0.002
Appearance Clear, colorless liquid
Refractive index ** 1.402 – 1.404

Available Documents

Technical datasheet

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