alpha-Butylene Dibromide
Title: a-Butylene Dibromide
CAS Registry Number: 533-98-2
CAS Name: 1,2-Dibromobutane
Molecular Formula: C4H8Br2
Molecular Weight: 215.91
Percent Composition: C 22.25%, H 3.73%, Br 74.02%
Line Formula: CH3CH2CHBrCH2Br
Literature References: Prepn by bromination of butene: Wurtz, Ann. 152, 21 (1869); of bromobutane: Kharasch et al., J. Org. Chem. 20, 1430 (1955).
Properties: Yellowish liquid, bp 166°. mp -65°. d420 1.7946. nD20 1.5144. Practically insol in water; miscible with alcohol.
Melting point: mp -65°
Boiling point: bp 166°
Index of refraction: nD20 1.5144
Density: d420 1.7946

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