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Di-Sodium Phosphate(DSP)

Di-Sodium Phosphate(DSP)
Product Detailed
White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water

Di-Sodium Phosphate(DSP)

Molecular formula:Na2HPO4.nH2O (n=0,12)

Molecular weight:358.0 

Standard executed:HG/T2965-2000(Industrial Grade)  HG2920-2000(Food Grade)

CAS Number:7758-79-4

Properties:White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.52 g/cm3, melting point at 35°C

Uses:Used as a fire-preventio agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, etc.

Packing and storage:In 25kg, 50kg, 1000kg net bags, store at a cool ,dry and well ventilated place.

Guaranteed Technical Specifications:

No.

Specifications

Na2HPO4

(Anhydrous)

Na2HPO4 .12H2O

 (Duo hydrate)

Industrial Grade

Food

Grade

Industrial Grade

Food

Grade

1

Main contents %              ≥

98.0

98.0

97.0

97.0

2

Phosphorus pentoxide %      ≥

49.0

49.0

19.2

19.2

3

PH value of 1% solution

8.8-9.2

8.5-10.0

8.8-9.2

8.5-10.0

4

Chloride(as Cl) %             ≤        

 ——

——

0.05

——

5

Sulfate, as SO4)%            ≤

——

——

0.7

——

6

Heavy metals(as Pb )%       ≤

——

0.001

——

0.001

7

Arsenic(as As )%)            ≤

——

0.0003

0.005

0.0003

8

Fluoride(as F) %             ≤

——

0.005

0.05

0.005

9

Water insoluble %            ≤

0.10

0.20

0.05

0.20

Di-Sodium Phosphate(DSP)



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