单词 | iron sulphate |
释义 | iron sulphate(US iron sulfate) noun 1Iron (ii) sulphate (ferrous sulphate), FeSO4, a green crystalline solid used in dyeing, nutritional supplements, water purification, etc. 2Iron (iii) sulphate (ferric sulphate), Fe2(SO4)3, a yellow crystalline solid used as a mordant in dyeing. OriginMid 19th century; earliest use found in The Mechanics' Magazine. |
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