Sodium Thiosulfate, Pentahydrate, Crystal, USP, EP, BP, JP
Sodium Hyposulfite
U.S.P. Functional Use: Antioxidant
|
Chemical Formula |
Na2S2O3.5H2O |
|
Molecular Weight |
F.W. 248.19 |
|
CAS # |
10102-17-7 |
|
Safety Information |
|
|
Health Hazard |
2 |
|
Fire Hazard |
0 |
|
Reactivity |
0 |
|
|
|
|
Test |
Specification |
| Assay (Na2S2O3; Anhydrous Basis) | 99.0-100.5% |
| Water | 32.0-37.0% |
| MAXIMUM LIMITS | |
| Calcium | To pass test |
| Heavy Metals (as Pb) | 10 ppm |
| pH of a 10% Solution | 6.0-8.0 |
| Chloride | 200 ppm |
| Sulfate and Sulfites | 0.2% |
| Sulfides | To pass test |
| Co | |
|
UPS limit |
150 lb |
|
Storage Information |
HYGROSCOPIC: Keep tightly closed. |
Chemical information and descriptions have been provided by Spectrum Chemicals.
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