Disodium Phosphate(DSP)

PT009  DISODIUM PHOSPHATE (DSP)  TECHNICAL GRADE

9.1 Identity:

Chemical name  :  Sodium Phosphate Dibasic  

                 Sodium Monohydrogen Phosphate

Molecular formula: Na₂HPO4_,  Na₂HPO4. 12H₂O

Molecular weight: 141.96

CAS number:  7558-79-4

9.2  Physical and chemical properties:

Appearance: White powder, crystal

Bulk density  :0.75Kg/L

9.3 Specification    Anhydrous         Hydrate

Main content:        97%min            98%min

P2O5:              49%min            18.3%min

Insoluble :           0.1%max          0.1%max

PH(1%solution):     8.8-9.2              8.8-9.2

Sulphate:           0.5%max

Chloride:           0.05%max

(All figures are on w/w bases)

9.4  Applications:

Metal surface treatment, Binder in enamel production

Water treatment, Component of cleaners