Title: Acetonylacetone
CAS Registry Number: 110-13-4
CAS Name: 2,5-Hexanedione
Additional Names: a,b-diacetylethane
Molecular Formula: C6H10O2
Molecular Weight: 114.14
Percent Composition: C 63.14%, H 8.83%, O 28.03%
Line Formula: CH3COCH2CH2COCH3
Literature References: Prepn by decarboxylation of diacetosuccinic ester (from sodium acetoacetic ester and iodine): Paal, Ber. 18, 58 (1885); Knorr, Ber. 22, 2100 (1889); by hydrolysis of 2,5-dimethylfuran: Perkins, Toussaint, US 2052652 (1936 to Union Carbide). Toxicity data: H. F. Smyth, C. P. Carpenter, J. Ind. Hyg. Toxicol. 26, 269 (1944).
Properties: Liquid, gradually turns yellow. d420 0.970. mp -9°. bp 188°, nD20 1.449. Misc with water, alcohol, ether. LD50 orally in rats: 2.7 g/kg (Smyth, Carpenter).
Melting point: mp -9°
Boiling point: bp 188°
Index of refraction: nD20 1.449
Density: d420 0.970
Toxicity data: LD50 orally in rats: 2.7 g/kg (Smyth, Carpenter)
CAUTION: A mild local irritant. High concns cause narcosis. |