Dictionary

Roman vitriol en · NOUN

Meanings

1. (obsolete, possibly, uncountable) Synonym of copper(II) sulfate.
   • Then add two ounces of gum-arabic, and one of Roman vitriol, which infuse four days before straining, and the ink is done. 1758, Valuable Secrets in Arts and Trades ...: Containing Upwards of One Thousand Approved Receipts Relative to Arts and Trades ..., page 219:
   • The scalding mixture, generally used, is made in the following manner: Take of corosive sublimate, verdigrease in fine powder, and Roman vitriol, of each two drams; of green vitriol, or copperas, half an ounce; of oil of turpentine and train oil, ... 1785, The Sportsman's Dictionary; Or, The Gentleman's Companion: ...:
   • First in the liquor composed of mordant and fustic, then in green vitriol and Roman vitriol, washed off and repeated according to the colour wanted. 1815, The Repertory of Arts and Manufactures, page 260:

Synonyms

copper(II) sulfate

wikidata: Q107184