Sentence Examples


  • His caustic expression served as a catalyst to her boredom.
  • The kittens were a catalyst to crumbling the walls of tension that had been built between them.
  • Every chain of events starts with one push, a catalyst, the perfect mix of different elements that craft a path and make an outcome more likely.
  • It may be prepared by distilling fuming sulphuric acid, or concentrated sulphuric acid over phosphorus pentoxide, or by the direct union of sulphur dioxide with oxygen in the presence of a catalyst, such as platinized asbestos (see Sulphuric Acid).
  • Phys., 1838, (2), 69, p. 170), by the action of chlorine on a mixture of ethylene and sulphur dioxide, may also be obtained by the direct union of sulphur dioxide and chlorine (especially in the presence of a little camphor); and by heating chlorsulphonic acid in the presence of a catalyst, such as mercuric sulphate (Pawlewski, Ber., 18 97, 3 0, p. 765): 2S0 2 C1.

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