Products Description Descriptionï¼? Properties White granular crystal; relative density at 1.803, melting point at 190â??, easily soluble in water, slightly soluble in alcohol, insoluble in ketone, PH value of 1% solution is 4.5. Uses As a fire-prevention agent for fabric, timber and paper, as well as a fire-prevention coating, and dry powder for fire extinguisher. For food grade it is mainly used as a fermentation agent, nourishment, and so on. Used as a high effective non-chloride N, P compound fertilizer in agriculture. Its total nourishment (N=P2O5) is at 73%, and may be used as a basic raw material for N, P and K compound fertilizer. Certifications Item Result Appearance White to off-white powder Assay â?¥99.5% Loss on drying NMT 0.2% Ash NMT 0.01% Heavy Metal (Pb) NMT 0.5 mg/kg As NMT 2.0 mg/kg