... in water, but insoluble in ethanol, its water solution is slightly alkaline, relative density at 1.63, melting ... ≤%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