1539. n-Butyl Acrylate

Nomenclature

CAS number: 141-32-2
2-Propenoic acid butyl ester; acrylic acid n-butyl ester.
C7H12O2; mol wt 128.17.
C 65.60%, H 9.44%, O 24.97%.

Description and references

Prepn from n-butanol and methyl acrylate: Rehberg, Org. Synth. coll. vol. III, 146 (1955). Toxicity study: H. F. Smyth et al., Arch. Ind. Hyg. Occup. Med. 4, 119 (1951).

Chemical structure

Properties

Liquid. d420 0.8986; d415 0.9110; d412 0.9117; d40 0.9202. bp760 145°; also reported bp760 138°; bp101 84-86°; bp25 59°; bp10 39°; bp8 35°. nD20 1.4190; nD12 1.4254. Sp heat (-60°): 0.467 cal/g/°C; heat of vaporization 8.11 kcal/mol; heat of combustion 974.46 kcal/mol. Soly in water at 20°: 0.14 g/100 ml; at 40°: 0.12 g/100 ml. Soly of water in n-butyl acrylate at 20°: 0.8 ml/100 g. LD50 orally in rats: 3.73 g/kg (Smyth).

Derivative

Polymer.

Properties

Elastic, tacky substance. Brittle temp -45°.

Caution

Potential symptoms of overexposure to the monomer are irritation of eyes, skin, upper respiratory system; sensitization dermatitis; dyspnea. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 38.

Use

The monomer in the manuf of polymers and resins for textile and leather finishes, paint formulations, etc.