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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 pentahydrate |
| Synonyms: | Sodium thiosulfate pentahydrate |
| Species: | pure |
| Chemical Formula: | Na₂S₂O₃ x 5H₂O |
| Molar Mass: | 248.18 g/mol |
| EC Number: | 231-867-5 |
| CAS Number: | 10102-17-7 |
| TESTED VALUE | STANDARD |
| Content | min. 99.0% |
| Sodium thiosulfate 7hydrate (Na₂S₂O₃ x 7H₂O) | max. 0.75% |
| Sodium sulfide (Na₂S) | max. 0.01% |
| Alkali and alkaline earth metals | max. 0.5% |
| Lead (Pb) | max. 0.005% |
| Iron (Fe) | max. 0.002% |
| pH value (10%, H₂O, 20°C) | 6,2 - 9,2 |
| Light transmittance | min. 85.0% |
| External appearance | white crystalline powder or colorless crystals |
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