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alcoholic potash造句

"alcoholic potash"是什么意思   

例句与造句

  1. It is also formed by the action of alcoholic potash and methyl iodide on ethylidene diethyl sulfine, CH 3 " CH ( SO 2 C 2 H 5 ) 2 ( which is formed by the oxidation of dithioacetal with potassium permanganate ).
  2. "' Phenylpropiolic acid "', C 6 H 5 CCCO 2 H, formed by the action of alcoholic potash on cinnamic acid dibromide, C 6 H 5 CHBrCHBrCO 2 H, crystallizes in long needles or prisms which melt at 136 137 癈 . When heated with water to 120 癈, it yields phenylacetylene ( C 6 H 5 CCH ).
  3. Chromic acid oxidizes it to benzoic acid; zinc and acetic acid reduce it to cinnamic acid, C 6 H 5 CH = CHCO 2 H, whilst sodium amalgam reduces it to hydrocinnamic acid, C 6 H 5 CH 2 CH 2 CO 2 H . Ortho-nitrophenylpropiolic acid, NO 2 C 6 H 4 CCCO 2 H, prepared by the action of alcoholic potash on ortho-nitrocinnamic acid dibromide, crystallizes in needles which decompose when heated to 155 156 癈 . It is readily converted into indigo.
  4. It's difficult to find alcoholic potash in a sentence. 用alcoholic potash造句挺难的

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