... is 4.5. Applications: Mainly used as fire-preventing agent for fabric,timber and paper;also used in electroplating and pharmacy ... total nourishment at 74% being a fine quality raw material for preparing N. P and K compound fertilizer.Package and storage: Plastic-woven ... content, % min99.099.0Phosphorus pent-oxide, % min60.560.5Nitrogen as N, % min11.811.8Water insoluble, % max0.10.1Moisture, % max0.20. ...