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单词 calcium oxide
释义

calcium oxide

noun [mass noun]
A white caustic alkaline solid, commonly produced in the form of quicklime.
  • Chemical formula: CaO.
The dissociation of calcium carbonate to calcium oxide and carbon dioxide at 25°C and atmospheric pressure provides an example; raising the temperature or lowering the pressure drives the reaction in the forward direction....
  • By melting silica mixed with sodium hydroxide or calcium oxide one is able to interrupt the long chains of silicon-oxygen bonds to form more easily melted glasses.
  • Calcium carbide, made by reacting calcium oxide with carbon in the form of coke, is the starting material for the production of acetylene.
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更新时间:2024/12/23 16:17:14