Sentence Examples


  • It is formed by the condensation of acetylene tetrabromide with benzene in the presence of aluminium chloride: Br CH Br CH C H +C6H6=4HBr+C6H4) I, )C6H4, Br CH Br CH and similarly from methylene dibromide and benzene, and also when benzyl chloride is heated with aluminium chloride to 200° C. By condensing ortho-brombenzyl bromide with sodium, C. L.
  • Titanium tetrabromide, TiBr 4, is an amber-coloured crystalline mass.
  • Acetylene tetrabromide, C 2 H 2 Br 4, which is very conveniently prepared by passing acetylene into cooled bromine, has a density of 3 ooi at 6° C. It is highly convenient, since it is colourless, odourless, very stable and easily mobile.
  • The tetrabromide similarly gives TeOBr2.2S03 (W.
  • Soc., 1907, 91, p. 1849), by determining the ratio of tellurium dioxide to oxygen and by analysis of tellurium tetrabromide, obtained 127.60, and V.

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