a: SAPP28,40
b:Content:95.0%min powder
c.food grade
d.100-200mesh
Specification:
1,Formula Na2H2P2O7
2,Formula wt 221.94
3,CAS: [7758-16-9]
4,Specificity: White power, Opposite density is 1.86, will damp in wet area. It can melt in water, can not melt in Ethyl alcohol. Aqueous is cidity, the pH number is 3.7—5.0. It can be synthesize with Fe2+,Mg2+, There are some Aluminum salt and Calcium salt in order to control the respond the velocity when it uses for swelling agent.
Specifications |
SPECIFICATION |
Test resul |
Appearance |
White Powder |
White Powder |
Na2H2P2O7 % |
≥95 |
95.33 |
PH of 1% water solution |
3.5-5 |
4.1 |
Water insoluble % |
≤1.0 |
0.03 |
Pb % |
≤0.0015 |
0.001 |
As % |
≤0.0003 |
0.00018 |
F % |
≤0.005 |
0.002 |
P2O5 % |
|
63.57 |
Dryingloss %≤ |
|
0.5 |
Bulk density |
|
0.85 |
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