Di-Sodium Phosphate(DSP)
Molecular formula: Na2HPO4.nH2O (n=0,12)
Molecular weight: 358.0
Standardexecuted:HG/T2965-2000(IndustrialGrade)
HG2920-2000(Food Grade)
CAS Number:7758-79-4
Guaranteed Technical Specifications
No. |
Specifications |
Na2HPO4 (Anhydrous) |
Industrial Grade |
Food Grade |
1 |
Main contents %≥ |
98.0 |
98.0 |
2 |
Phosphorus pentoxide,as P2O5 |
49.0 |
49.0 |
3 |
PH of 1% water solution |
8.5-10.0 |
8.5-10.0 |
4 |
Chloride(as Cl)max% |
|
|
5 |
Sulfate, as SO4 %≤ |
|
|
6 |
Heavy metals, as Pb %≤ |
|
0.001 |
7 |
Arsenic, as As %≤ |
|
0.0003 |
8 |
Fluoride, as F %≤ |
|
0.005 |
9 |
Water insoluble %≤ |
0.10 |
0.10 |
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℃
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.
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