... MF:Na2HPO4.12H2O Purity: 98% Used in :food additive, fire retardant DSP Disodium hydrogen phosphateChemical formula: Na 2HPO4 ·12H2OMolecular ... melting point is 34.6.USE: used as a fire-prevention agent for fabric,timber,and paper,also as water softening ... agent for boiler,food additive,buffering agent,solder,tanning agent,etc.Technical Specifications:Assay ≥ 98. ...