Rock Sulphate _ Suppliers Spec.
COMPONENT TYPICAL RANGE
Phosphate (P2O5) % 30.5 29.5 min
Aluminium Oxide
(Al2O3) % 0.7 0.85 max
Calcium Oxide
(CaO) % 43 45 max
Magnesium Oxide
(MgO) % 0.4 0.55 max
Silica (Total)
(SiO2) % 11 13 max
Iron Oxide
(Fe2O3) % 1.3 1.5 max
Cadmium (Cd) ppm 3 5 max
Moisture % 2.5 3 max
Carbonate
as CO3 % 4.5 6 max
