Ferrous ferrocyanide

Description

Another name for Turnbull's blue. Ferrous ferrocyanide is often confused with ferric ferrocyanide (Prussian blue) but it is not the same.

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