An important source of calcium phosphate made from calcined cattle bones. Real bone ash is chemically inert and free of organic matters. Calcium acts as a flux, and phosphorous as a glass former.
CaO 36.4% min.
P2O5 18.5% min.
Melting point 1670°C
20 mesh 40 mesh 80 mesh 100 mesh 200 mesh 325 mesh
Percentage retained on screen 2.3% 3.5% 22.6% 42.8% 24.0% 3.4%
Commonly used in commercial porcelains known as bone china, where it lowers the maturing temperature and adds translucency. Used in Iron red glazes where it brightens the color, and is used to give texture in low fire glazes.
All products except Clay, Kilns and Equipment ship for free if order total is over Rs. 1,995.
Clay, Kilns and Equipment shipping charges will be computed at checkout.