... is slightly alkaline, relative density at 1.63, melting point at 34.6°C.Specifications:Name of indexFood ... ≤%0.0001Application: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 ... from poisonous substances. Disodium Phosphate Anhydrous DSP for food