Sodium Thiosulfate CAS#7772-98-7
High Water Solubility – Readily dissolves in water with very high solubility, ensuring easy preparation and efficient use in aqueous systems.
High Purity and Stable Appearance – Appears as colorless monoclinic crystals or white crystalline powder, odorless and clean, suitable for industrial and chemical applications.
Strong Reducing Capability – Exhibits strong reducing properties, making it effective for chemical reactions and reduction processes.
Good Reactivity in Acidic Conditions – Decomposes in acidic solutions, allowing controlled reactivity for specialized chemical processing.
Products Description of Sodium Thiosulfate CAS#7772-98-7
It appears as colorless monoclinic crystals or a white crystalline powder, odorless with a slightly salty taste. It has a relative density of 1.667. It is readily soluble in water, with a solubility of about 231 g per 100 mL of water at 100 ℃, but is insoluble in alcohol. It easily absorbs moisture from the air. It exhibits strong reducing properties and decomposes in acidic solutions.
Parameters
| Melting point | 48°C |
| Boiling point | 100°C |
| bulk density | 1350kg/m3 |
| density | 1.01 g/mL at 25 °C |
| storage temp. | Store at +5°C to +30°C. |
| solubility | Immiscible with alcohol. |
| form | Solid |
| Specific Gravity | 1.667 |
| color | White |
| PH | 6.0-8.5 (25℃, 50mg/mL in H2O) |
| Water Solubility | Soluble in water. Insoluble in alcohol. |
| Sensitive | Hygroscopic |
| Merck | 148,694 |
| Stability: | Stable. Incompatible with strong acids, strong oxidizing agents, iodine, mercury. |
| InChIKey | AKHNMLFCWUSKQB-UHFFFAOYSA-L |
| LogP | -0.428 (est) |
| CAS DataBase Reference | 7772-98-7(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium thiosulfate (7772-98-7) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 24/25-23-36-26 |
| WGK Germany | 1 |
| RTECS | XN6476000 |
| F | 3 |
| TSCA | Yes |
| HS Code | 28323000 |
| Hazardous Substances Data | 7772-98-7(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
Product Application of Sodium Thiosulfate CAS#7772-98-7
Sodium thiosulfate (CAS#7772-98-7), commonly known as sodium thiosulfate, possesses reducing, complexing, and detoxifying properties and is widely applied in many fields. In medicine, it is used for the emergency treatment of cyanide and heavy-metal poisoning, as well as for topical applications in dermatology. In chemical and industrial applications, it is employed to remove residual chlorine and hexavalent chromium in water treatment, for dechlorination in textile printing and dyeing, and for decomposing hypochlorite during papermaking and pulping processes.
