Properties: white crystal, easily soluble in water, but not in organic solution, melting point at 117.3¡æ, its water solution is strongly acidic, ph value in 1% solution is 1.89, it has got bad heat stability and easily decomposed when heated. Applications: 1.Used as high quality feed addictive£»2. A high quality acid n, p compound fertilizer with ureic nitrogen; 3. It is suitable for alkaline soil, also used fire retardant agent, finishing agent for metal, fermentation nourishment, cleaning agent and flux for purifying phosphoric acid etc.. 25 kg pp pe bag