Phosphorus-pentoxide sentence example

phosphorus-pentoxide
  • The true nitrile of malonic acid is methylene cyanide, CH 2 (CN) 2, which is obtained by distilling a mixture of cyanacetamide and phosphorus pentoxide.
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  • It may also be obtained by distilling nitric acid over phosphorus pentoxide.
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  • It may be prepared by fusion of ortho-toluene sulphonic acid with potash; by the action of phosphorus pentoxide on carvacrol; or by the action of zinc chloride on camphor.
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  • When heated with phosphorus pentoxide it yields cyanogen.
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  • The acid is formed by dissolving phosphorus pentoxide in cold water, or by strongly heating orthophosphoric acid.
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  • Phosphorus combines directly with the metal to form W3P4; another phosphide, W2P, results on igniting a mixture of phosphorus pentoxide and tungsten.
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  • The first is formed when 30% hydrogen peroxide reacts with phosphorus pentoxide or metaor pyrophosphoric acids at low temperatures and the mixture diluted with ice-cold water.
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  • Since conhydrine is dehydrated by phosphorus pentoxide into a mixture of a and f3 coniceines, it may be considered an oxyconine.
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  • Zimmermann, Ber., 1885, 18, p. 3316); by heating isoamyl nitrate with phosphorus pentoxide (E.
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