Phosphorus is manufactured by heating in an electric furnace a mixture of (a) Bone ash and coke (b) Bone ash and silica (c) Bone ash

Phosphorus is manufactured by heating in an electric furnace a mixture of (a) Bone ash and coke (b) Bone ash and silica (c) Bone ash, silica and coke Phosphorus is manufactured by heating in an electric furnace a mixture of (a) Bone ash and coke (b) Bone ash and silica (c) Bone ash silica and [...]