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In our shop, you can return most new and unused products within 30 days of delivery with no issues and receive a full refund.
If the error is on our end (e.g., wrong or damaged product), we will of course cover the return shipping costs. 🚚✅
The refund will be issued within 7 days after we receive your return.
In most cases, it's even faster!
| Name (English): | Sodium thiosulfate |
| Synonyms: | Sodium thiosulfate |
| Species: | pure |
| Chemical Formula: | Na₂S₂O₃ |
| Molar Mass: | 158.11 g/mol |
| EC Number: | 231-867-5 |
| CAS number: | 7772-98-7 |
| TESTED VALUE | STANDARD |
| Content | min. 97.0% |
| Sulfides (S) | max. 0.02% |
| Cadmium (Cd) | max. 0.01% |
| Copper (Cu) | max. 0.01% lead (Pb) |
| Lead (Pb) | max. 0.01% |
| Potassium (K) | max. 0.025% |
| Calcium (Ca) | max. 0.01% |
| Iron (Fe) | max. 0.01% |
| pH (5%, H₂O, 20°C) | 6,0 - 8,5 |
| External appearance | white powder or lumps |
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