Bible Encyclopedias
Vitriol
1911 Encyclopedia Britannica
a name given to sulphuric acid and to certain sulphates. Oil of vitriol is concentrated sulphuric acid. Blue or Roman vitriol ' is copper sulphate; green vitriol, ferrous sulphate (copperas); white vitriol, zinc sulphate; and vitriol of Mars is a basic iron sulphate.
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Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Vitriol'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/v/vitriol.html. 1910.