Wiktionary

salt of sorrel

English edit

Etymology edit

So called because found in the sorrel plant.

Noun edit

salt of sorrel (uncountable)

  1. (chemistry, obsolete) Acid potassium oxalate, or potassium quadroxalate, used as a solvent for ink stains.

Synonyms edit

Retrieved from "https://en.wiktionary.org/w/index.php?title=salt_of_sorrel&oldid=50521730"