n-Butyl Acrylate
Title: n-Butyl Acrylate
CAS Registry Number: 141-32-2
CAS Name: 2-Propenoic acid butyl ester
Additional Names: acrylic acid n-butyl ester
Molecular Formula: C7H12O2
Molecular Weight: 128.17
Percent Composition: C 65.60%, H 9.44%, O 24.97%
Line Formula: CH2=CHCOOC4H9
Literature 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).
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).
Boiling point: bp760 145°; bp760 138°; bp101 84-86°; bp25 59°; bp10 39°; bp8 35°
Index of refraction: nD20 1.4190; nD12 1.4254
Density: d420 0.8986; d415 0.9110; d412 0.9117; d40 0.9202
Toxicity data: LD50 orally in rats: 3.73 g/kg (Smyth)
Derivative Type: 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.

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