Product description: Item Specifications Test Results Characteristics White Color powder soluble in water White Color powder soluble in water Weight Loss on drying(%) ≤5 3.9 Residue on Ignition(%) ≤4 3.5 Nitrogen(%) ≥14.5 15.2 Heavy Metal(Pb. Mg/kg) ≤10 6.9 As(mg/kg) ≤0.5 0.15 pH value 4.5-6.5 5.5 Pathogenic Bacteria Can be detcted Not detected