| 单词 | zinc-sponge |
| 释义 | > as lemmaszinc-sponge zinc-sponge n. (see quot.). ΚΠ 1902 Encycl. Brit. XXVIII. 110/2 The deposition of pure zinc is beset with many difficulties,..unless the conditions are closely watched, it is liable to be thrown down in a spongy form... Siemens and Halske have proposed the addition of oxidising agents such as free halogens, to prevent the formation of zinc hydride, to which they attribute the formation of zinc-sponge. < as lemmas |
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