Sodium Thiosulphate Pentahydrate
EP, USP (Tested for Endotoxin & Microbes)
CAS #:
10102-17-7
Molecular Formula:
Na2S2O3 . 5H2O
Synonym:
Disodium Thiosulfate, Sodium Hyposulfite pentahydrate
Molecular Weight:
248.18 g/mol
Overview
Sodium Thiosulfate, Pentahydrate has been used to lessen some of the side effects of cisplatin (a cancer medicine). It is also used with another medicine in the emergency treatment of cyanide poisoning. In analytical chemistry, the most important use comes because the thiosulfate anion reacts stoichiometrically with iodine in aqueous solutions.
| Characters | Unit | Specification |
|---|---|---|
| Appearance | transparent, colourless crystals | |
| Assay | % | 99.0 – 101.0 |
| Identification | complies | |
| Appearance of solution | clear and colourless | |
| pH-value | 6.0 – 8.4 | |
| Sulphates and sulphites | % | max. 0.2 |
| Sulphides | complies | |
| Heavy metals | ppm | max. 10 |
| Total aerobic microbial count | cfu/g | max. 100 |
| Total yeasts and moulds count | cfu/g | max. 50 |
| E.coli | cfu/g | absent in 1g |
| Pseudomonas aeruginosa | cfu/g | absent in 1g |
| Staphylococcus aureus | cfu/g | absent in 1g |
| Salmonella | cfu/g | absent in 25g |
| Bacterial endotoxine | IU/g | max. 2.5 |
| Water | % | 32 - 37 |
| Calcium | complies |
Shelf Life/Retest Date: Sodium Thiosulphate Pentahydrate can be kept for at least 2 years if stored under recommended conditions.
Storage/Shipping Conditions:
- Keep container tightly closed in a dry and well-ventilated place.
- Store at room temperature in the original container.
- Hygroscopic. Protect from moisture.
- Store away from incompatible materials.
Pack Sizes: 1 Kg
