Wuhan South Light Technology Development Co., diammonium phosphate [Formula] (NH4) 2HPO4 [Molecular weight] 132.0 CAS 7783-28-0 [Executive standard] GB10205-2009 [nature] diammonium phosphate as white crystals, soluble in water , insoluble in alcohol. The relative density of the solid is 1.619, a melting point of 155 ℃ (decomposition). Exposed to the air gradually lose ammonia into ammonium dihydrogen phosphate. Diammonium phosphate aqueous alkaline reaction, 1% aqueous solution PH value of 8.0. [Use] diammonium phosphate is mainly used for wood, paper, fabric for fire retardant, also used as fire retardant paint additive, also used in the manufacture printing plate and medicine and so on. In the food industry as a leavening agent, nutritional agent. Diammonium phosphate in agriculture as a non-chloride N, P binary efficient fertilizer use, the total nutrients (N + P2O5) was 74%, which is the preparation of N, P, K compound fertilizer-based raw materials. [Packing] plastic woven bag, net weight 25KG, stored in ventilated and dry place. [Technical Specifications] Index Name Index Industrial Grade Appearance White granular crystals main content [with (NH4) 2HPO4 count]% ≥ 99.0 pentoxide (as P2O5)% ≥ 53.0 nitrogen (N dollars)% ≥ 20.8 Water insoluble % ≤ 0.20 Moisture (H2O meter)% ≤ 0.2 Heavy metals (as Pb)% ≤ - Arsenic (As)% ≤ - Fluoride (F)% ≤ - PH value (1% aqueous solution ) 7.8-8.2