Sodium Thiosulfate Pentahydrate
Product Description
| Product | Sodium Thiosulfate Pentahydrate |
| CAS | 10102-17-7 |
| Formula | Na2S2O3.5H2O |
| Synonym | Sodium Hyposulfite |
Typical Product Specifications
| Density | 1.69 |
| Density (25ยฐC) | 1.685 g/l |
| Iron | 0.002% Max |
| Solubility in water | 42.7 |
| Assay | 99% Min |
| Heavy Metals | 0.001% Max |
| Na2S2O3 (sodium thiosulfate) | 62% Min |
| Sodium Sulfite | 0.2% Max |
| pH | 6.5-8.0 |
| Insolubility | in alcohol |
| Odor | odorless |
| Melting Point | 48 c |
| Molecular weight | 248.18 |
| Color | colorless crystal or granulated |
| Solubility | water |
| Chemical Structure | ![]() |
| Notes | Packaging: 50 lb bags; 40 bags per pallet |
| Class | Inorganic Chemicals: Nitrates, Phosphates, Oxides & more |

Find another Material
Enter a chemical name, synonym or CAS# below






