About this pottery supply
Dicalcium phosphate. A substitute for bone ash in glazes. It is a source of both calcium oxide, an important glaze flux, and phosphorous pentoxide, a glass-former like silica and boric oxide. To replace 100 g bone ash (10CaO.3P2O3.H2O) use 100 g Bone Ash.
For more information on dicalcium phosphate, see the Digitalfire.com Reference Library of ceramic materials.
For more information on bone ash, see the Digitalfire.com Reference Library of ceramic materials.
Product price and default-option availability verified from the live supply source at Aug 26, 2026, 5:06 p.m..