/ Thesaurus / P Synonyms of potassium carbonate Find synonyms for: Noun1. potassium carbonate, carbonateusage: a white salt (K2CO3) that is basic in solution; used to make glass and cleansing agentsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language