| 单词 | cobaltous oxide |
| 释义 | > as lemmascobaltous oxide Of the nature of cobalt; applied to the di-compounds of the metal, as cobaltous oxide CoO. ΚΠ 1863 H. Watts Dict. Chem. I. 1048 Protoxide of Cobalt or Cobaltous Oxide..is a light greenish-grey or olive-green non-magnetic powder. 1863–72 H. Watts Dict. Chem. I. 1049 Hydrated cobaltous oxide, or Cobaltous hydrate..is produced when a cobaltous salt is decomposed by potash out of contact of air. < as lemmas |
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