Indian
Suppliers
Suppliers
Vasupujya Chemicals
Category : Chemicals
We offer superior quality and accurately formulated sodium formaldehyde bisulfite which are available with the following specifications:
|
1 |
Physical Appearance |
White Powder. |
|
2 |
Appearance of Solution |
25% solution in distilled water should be clear and colorless & free from External Impurities. |
|
3 |
Assay as NaHSO3 - HCHO |
98.0% Min. |
|
4 |
Free Bisulphite as NaHSO3 |
0.20% Max. |
|
5 |
Thiosulphate as Na2S203-5H2O |
0.05% Max. |
|
6 |
Iron as Fe. |
0.001% Max. |
|
7 |
Heavy Metal as Pb. |
0.005% Max. |
|
8 |
Volatile Metter at 70 @ Centigrade |
0.002 % Max. |
|
9 |
pH of 20% solution |
7.0 to 7.5 |