Specification :

Molecular formula: NaH2PO4. nH2O ( n= 0, 2)
Standard executed: Tech grade ( HG/ T 2767-1996) Food grade ( HG 2919-2000)
CAS Number: 7558-80-7
Properties:
Anhydrous products is white powder, and melting point is at 190  .Dihydrate products is colorless crystal, relative density at 1.915 g/ cm3, melting point at 57.4 . All easily soluble in water, but not in organic solution its water solution is acidic with PH value at 4.5
Uses:
Used for water treatment to boiler, also as buffering agent to acidity, detergent, cleaning agent, dyeing flux, for tanning and electroplating. For food additive it is mainly used as buffering agent, emulsification agent, nourishment, etc.
Guaranteed Technical Specifications:
Specifications Industrial Grade Food Grade FCC IV
Main Contents % e 98 98 98.0-103.0
Phosphorus pentoxide % e 58.0 58.0 57.0-59.0
Sodium Oxide ( Na2O) 25.5-26.5 25.5-26.5 25.5-26.5
PH value of 1% solution 4.2-4.8 4.2-4.8 4.2-4.9
Heavy metals, as Pb 10ppm 10ppm 10ppm
Arsenic, as As 3ppm 3ppm 3ppm
Fluoride as F 50ppm 50ppm 50ppm
Water insoluble % d 0.10 0.10 0.2