Structural Formula Vector Image
Title: p-Chloroacetophenone
CAS Registry Number: 99-91-2
CAS Name: 1-(4-Chlorophenyl)ethanone
Additional Names: 4¢-chloroacetophenone
Molecular Formula: C8H7ClO
Molecular Weight: 154.59
Percent Composition: C 62.16%, H 4.56%, Cl 22.93%, O 10.35%
Literature References: Prepd from chlorobenzene and acetic anhydride in the presence of AlCl3: Adams, Noller, Org. Synth. coll. vol. I, 109 (1941). Physical properties: eidem, ibid.; Dreisbach, Martin, Ind. Eng. Chem. 41, 2875 (1949).
Properties: Liquid, bp24 124-126°, bp 237°. mp 20-21° (Adams, Noller); also reported as 18.4° (Dreisbach, Martin). d420 1.192, d425 1.188. nD20 1.555, nD25 1.553. Practically insol in water. Miscible with alcohol, ether.
Melting point: mp 20-21° (Adams, Noller); also reported as 18.4° (Dreisbach, Martin)
Boiling point: bp24 124-126°; bp 237°
Index of refraction: nD20 1.555; nD25 1.553
Density: d420 1.192; d425 1.188
CAUTION: Highly irritating to eyes, mucous membranes.

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