Diammonium Phosphate is a derivative of Phosphoric Acid. Diammonium Phosphate is freely soluble in water. Diammonium Phosphate is a white crystalline powder with a melting point of 155oC. It should be stored in tightly closed containers in a Room Temperature. Diammonium Phosphate is used in Flame Proofing & as a Fire Extinguishing Agent. It is also used in various Fermentations such as Yeast Cultures. It can also be used in Corrosion Inhibitor. It is used in Agriculture as a Fertilizer.