“calcium dicarbide”的概念、定义、翻译、参考文献-科学参考

calcium dicarbide

Chemistry

A colourless solid compound, CaC₂; tetragonal; r.d. 2.22; m.p. 450°C; b.p. 2300°C. In countries in which electricity is cheap it is manufactured by heating calcium oxide with either coke or ethyne at temperatures above 2000°C in an electric arc furnace. The crystals consist of Ca²⁺ and C₂⁻ ions arranged in a similar way to the ions in sodium chloride. When water is added to calcium dicarbide, the important organic raw material ethyne (acetylene) is produced:
${CaC}_{2} (s) + 2 H_{2} O (l) \to Ca {(OH)}_{2} (s) + C_{2} H_{2} (g)$

单词	calcium dicarbide
释义	calcium dicarbide Chemistry A colourless solid compound, CaC₂; tetragonal; r.d. 2.22; m.p. 450°C; b.p. 2300°C. In countries in which electricity is cheap it is manufactured by heating calcium oxide with either coke or ethyne at temperatures above 2000°C in an electric arc furnace. The crystals consist of Ca²⁺ and C₂⁻ ions arranged in a similar way to the ions in sodium chloride. When water is added to calcium dicarbide, the important organic raw material ethyne (acetylene) is produced: ${CaC}_{2} (s) + 2 H_{2} O (l) \to Ca {(OH)}_{2} (s) + C_{2} H_{2} (g)$
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