As a fire-prevention agent for fabric, timber and paper. Used as a high effective non-chloride N, P compound fertilizer in agriculture. It contains totally 74% fertilizer elements, used as a basic raw material for N, P and K compound fertilizer. Total content 99.00%min Total nitrogen (Total-N) 21.00%min Total phosphorus ( Total-P2O5) 53.00%min Moisture 0.1%max Water insoluble 0.1%max pH 7.8~8.2