... powderWhitish powderAssay (As CaHPO4), %97.0-105.098.0-105.0Fluoride, ≤%0.0050.005Loss on drying, ≤%7.0-8.56.6-8.5Heavy metals ... (As Pb), ≤%0.00150.0015Pb, ≤%0.0002-As, ≤%0.00030.0003Insolubles in HCI, ≤%-0.2Chloride, ≤%-0.25Sulphate (SO4), ≤%-0.5Carbonate-Test passedBarium-Test passed6 ...