Name: Disodium phosphate (DSP)

Chemical formula: Na2HPO4. XH2O (X=0, 12)

Molecular weight: 358.0

Standard Executed: HG/T2767-1996

Properties: White or colorless granular crystals, and easy to airslake and dissolve in water and not dissolve in alcohol, relative density is 1.63, melting point is 34.6 degree celsius.

Applications: Mainly used for the fire retardant of textile, wood and paper, boiler water-softening agent, etc

Package and storage: Plastic-woven sack with polythene inner bag, net weight per bag is 25kg, 50kg and 100kg. Keep in dry and windy conditions.

Technical Specifications:

No.  standard name  anhydrate

Na2HPO4  Twelve hydrates

Na2HPO4.12H2O

   industrial grade  food grade  industrial grade  food grade

1  Main content %¡Ý  98.0  98.0  97.0  97.0

2  PH(1%water solution)  8.5-10.0  8.5-10.0  8.8-9.2  8.8-9.2

3  Sulphate%¡Ü      0.7  0.25

4  Heavy metal(as Pb)%¡Ü    0.001    0.001

5  Arsenic(As)%¡Ü    0.0003    0.0003

6  Fluoride(as F)%¡Ü    0.005    0.005

7  Water insoluble %¡Ü  0.10  0.10  0.10  0.10