... paper, fabric, for fire prevention agent, also used as a fire retardant coating Molecular formula: (NH4)2HPO4Molecular weight: 132. ... White crystals; relative density 1.619; melting point 155 . Soluble in water, insoluble in alcohol and acetone.Standard:Item indicators industrial food ... paper, fabric, for fire prevention agent, also used as a fire retardant coating with PPD, but also for the printing ...