Diammonium phosphate is colorless transparent orthorhombic crystal. Relative density 1.803 (19 ℃), melting point 190 ℃. Soluble in water, slightly soluble in alcohol, insoluble in acetone. It is stable in air and decomposes a small part when heated to 100 ℃. Welcome to visit our official website : http://www.chemicalphosphate.com