... dihydrate) ;Sodium phosphate monobasic dihydrate,Acid sodium phosphate,Monosodium orthophosphate,Primary sodium phosphate,Sodium dihydrogen phosphate,Sodium ... Properties: white powder, and melting point is at 190°C.NaH2PO4.2H2O is colorless crystal, relative density at 1 ... flux, for tanning and electroplating. For food additive it is mainly used as buffering agent, emulsification agent, nourishment, ...