| Model: | - |
|---|---|
| Brand: | - |
| Origin: | Made In China |
| Category: | Chemicals / Chemical Auxiliary & Catalyst / Chemical Auxiliary |
| Label: | boiler water treatme , acidic slow agent , Sodium Hydrogen Phos |
| Price: |
-
|
| Min. Order: | - |
| Live Chat: | Last Online:07 Mar, 2014 |
Molecular Formula:Na2HPO4
Molecular Weight:358.14
CAS NO.：7558-79-4
Standard：HG/T2965-2000(T.G),HG2920-2000(F.G)
Properties：
White powder, the melting point is 190 centigrade. It is soluble in water showing acidity. It decompounds sodium pyrophosphate anhydrous at 225-250 centigrade, and becomes sodium metaphosphate at 350-400 centigrade. It is slightly hygroscopic.
Usage：For boiler water treatment, electroplating, leather, BeiFen,fuel additives,detergent, mica tulameen close, acidic slow agent etc, also be preparing sodium hexametaphosphate and polycondensation chromate salt of raw material
Standard：
|
Index |
Industrial Grade |
Food grade |
|
Main content %≥ |
97.0 |
98.0 |
|
P2O5 %≥ |
19.2 |
19.4 |
|
pH of 1% water solution |
8.8-9.2 |
9.0-9.4 |
|
Chloride, as Cl % ≤ |
0.05 |
0.014 |
|
Sulfate, as SO4 % ≤ |
0.7 |
0.25 |
|
Heavy metal, as Pb % ≤ |
- |
0.001 |
|
Arsenic, as As % ≤ |
0.005 |
0.0003 |
|
Fluoride, as F % ≤ |
0.05 |
0.002 |
|
Water insoluble % ≤ |
0.10 |
0.05 |
