Sentence Examples

  • Oc 2 H 5 H Ch�C]](ONa) :CH�000C2H5; and on acidification this last substance gives aceto-acetic ester.
  • The product on acidification gives a compound C15H1205 � H20 which is probably an oxy-methoxy-benzoyl benzoic acid.
  • Baeyer in 1890, by heating alizarin with fuming sulphuric acid for 24-48 hours at 35-40° C., obtained a product, which after treatment with caustic soda gave a sulphuric acid ester of quinalizarin, and this after acidification and boiling was converted into quinalizarin (Alizarin Bordeaux) or tetra-oxyanthraquinone.
  • Chromium and its salts may be detected by the fact that they give a deep green bead when heated with borax, or that on fusion with sodium carbonate and nitre, a yellow mass of an alkaline chromate is obtained, which, on solution in water and acidification with acetic acid, gives a bright yellow precipitate on the addition of soluble lead salts.
  • The solution on acidification yields a yellow precipitate of this sulphide.

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