Title: p-Difluorobenzene
CAS Registry Number: 540-36-3
Molecular Formula: C6H4F2
Molecular Weight: 114.09
Percent Composition: C 63.16%, H 3.53%, F 33.30%
Literature References: Prepd by diazotizing p-fluoroaniline in hydrofluoric acid and heating the diazonium salt to 120°: Swarts, Chem. Zentralbl. 1913, II, 760.
Properties: Liquid, pungent, aromatic odor. mp -23.7°. bp 88.82°. d20 1.17006. nD18.9 1.44219.
Melting point: mp -23.7°
Boiling point: bp 88.82°
Index of refraction: nD18.9 1.44219
Density: d20 1.17006

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