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

Molar Mass(g/mol): 128.17

Chemical formula:

Stoichiometric formula: C7H12O2

Technical Informations

Application Advice/Typical Applications

N-butyl acrylate is used primarily for manufacturing homopolymers and copolymers. N-butyl 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. N-butyl acrylate is an important raw material and a starting material for many chemical syntheses.

Parameter Value, Unit
Appearance, formTransparent, colorless, clear liquid
OdorTypical, pungent
Boiling point147 – 148 °C
Melting point-64.6 °C
Vapour pressure at 0°C0.14 kPa
Vapour pressure at 20°C0.544 kPa
Vapour pressure at 50°C2.84 kPa
Flash point (Closed cup)36 – 40 °C
Flash point (Open cup)47 – 48 °C
Explosion limit – upper at 126  °C8.6 % v/v
Autoignition temperature293 °C
Heat of evaporation at boiling point292 kJ / kg
Heat of polymerization504 kJ / kg
Heat of combustion29385 kJ / kg
Specific heat of liquid at 20°C1.98 kJ / kg.K
Density of liquid at 20°C899 kg / m3
Vapour density (air=1)4.4
Coefficient of cubic expansion1.15 × 10-3
Refractive index at 20°C1.415 – 1.418
Viscosity at 0°C1.28 mPa.s
Viscosity at 20°C0.92 mPa.s
Surface tension at 20°C25 mN / m
Solubility ester in water2 g / l
Solubility water in ester7 g / l
Electrical conductivity1.7 × 104 pS / m

Shipping and Storage

N-butyl acrylate is transported in specially equipped railway cars or tanker trucks.
Transport containers are filled to a maximum of 94% of their capacity.

In order to prevent spontaneous polymerization, n-butyl 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 n-butyl 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    n-butyl 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,
eMail: 4information@synthomer.com


Character Value Unit
Butyl acrylate (without IBA) min. 99.5
Dibutyl ether max. 0.04
Butyl acetate max. 0.05
Butanol max. 0.03
Isobutyl acrylate (IBA) max. 0.15
Butyl propionate max. 0.09
Other organic impurities max. 0.15
Color max. 10 APHA 
Water max. 0.05
Inhibitor (MEHQ) ** 0.001 - 0.002
Acidity (as Acrylic acid) max. 0.009
Appearance Clear, colorless liquid
Refractive index *** 1.417 – 1.421

Available Documents

Technical datasheet

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