A general term referring to the carbonate of an alkali metal. Historically, 'alkali' referred just to hydroxides and carbonates of sodium and potassium. It was later extended to refer to water soluble compounds of other alkali metals and ammonium ion. Alkali metals consist of all metals in group 1A of the periodic table (lithium, sodium, potassium, rubidium, cesium, and francium).
Sources Checked for Data in Record
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985