What is changed into a vitriol or a sulphate, or subjected to the action of sulphuric acid or of a sulphate; as, vitriolated potash, i. e., potassium sulphate called?

vitriolated — Changed into a vitriol or a sulphate, or subjected to the action of sulphuric acid or of a sulphate; as, vitriolated potash, i. e., potassium sulphate. (Webster's 1913.)

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