ferrous sulphate
柯林斯词典
1. N an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4 硫酸亞鉄 (Systematic name iron (II) sulphateAlso called copperas, green vitriol)
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