green vitriol


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green vitriol,

the heptahydrate of ferrous sulfateferrous sulfate
or iron (II) sulfate,
chemical compound, FeSO4. It is known as the monohydrate, FeSO4·H2O; the tetrahydrate, FeSO4·4H2O; the pentahydrate, FeSO4·5H2
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green vitriol

[′grēn ¦vi·trē‚ȯl]
(inorganic chemistry)