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单词 calcium carbide
释义

WordReference Random House Unabridged Dictionary of American English © 2024
calcium carbide, 
  1. Chemistrya grayish-black, lumpy, crystalline powder, CaC2, usually derived from coke or anthracite by reaction with limestone or quicklime: used chiefly for the generation of acetylene, which it yields upon decomposing in water. Also called carbide. 
  • 1885–90

Collins Concise English Dictionary © HarperCollins Publishers::
calcium carbide n
  1. a grey salt of calcium used in the production of acetylene (by its reaction with water) and calcium cyanamide. Formula: CaC2
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