An archaic common name for any reddish-brown compound formed by the fusion of a sulfur compound with an alkaline metal. For example, the product obtained when lime and sulfur are heated was called calcareous hepars.
Synonyms and Related Terms
Resources and Citations
- 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