|
| Sodium Thiosulphate Anhydrous |
| SODIUM THIOSULPHATE ANHYDROUS (Na2S2O3),
M.W. : 158 g/mol.11 CAS No. 7772-98-7, Sodium Thyposulphite |
| SPECIFICATION |
| Physical Appearance |
White free flowing powder
Free from lunps and externals visibal impurities. |
| Appearance of Solution |
A 20% solution in distilled water should be clear and colourless |
| Assay as Na2S2O3 |
97.0% Min. W/W. |
| PH of 10% Solution |
6.5 to 8.5 at room temp. |
| Sulphide as Na2S |
0.002% Max. |
| Insolubels mater as Ca, Mg and NH4OH |
0.4 % Max. |
| Iron as Fe |
0.005 % Max. |
| Heavy Metals as Pb |
0.005% Max. |
| Packing |
25kg / 50kg / 50Lb |
|
|
|
