Sodium Sulfite Anhydrous
EP, USP (Tested for Endotoxin & Microbes)
CAS #:
7757-83-7
Molecular Formula:
Na2SO3
Synonym:
Disodium Sulfite, Sulfurous acid, sodium salt (2:1)
Molecular Weight:
126.04 g/mol
Overview
Sodium Sulfite anhydrous is a widely used preservative. It is a used for preserving meat and prevent discoloration of dried fruit. It is a soluble sodium salt of sulfuric acid. It is also used in the paper processing industry and to purify TNT. It is also used as a preservative in pharmaceutical preparations.
| Characters | Unit | Specification |
|---|---|---|
| Appearance | white or almost white powder | |
| Identification | complies | |
| Assay | % | 95,0-100,5 |
| Appearance of solution | clear and colourless | |
| Thiosulphates | % | max. 0,1 |
| Iron | ppm | max.10 |
| Selenium | ppm | max. 10 |
| Zinc | ppm | max. 25 |
| Heavy metals | ppm | max.10 |
| Total aerobic microbial count | cfu/g | <10 |
| Total yeasts and moulds count | cfu/g | <10 |
| 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 endotoxin | IU/g | < 2,5 |
| Color and clarity of solution | clear and colourless |
Shelf Life/Retest Date: Expected shelf life with minimal degradation (less than 1% activity) is one year when stored in a cool, dry location. Actual shelf life may be longer.
Storage/Shipping Conditions:
- Store container in a well-ventilated position.
- Store in cool, dry conditions in well-sealed containers.
- Protect from humidity and keep away from water.
- Avoid contact with air / oxygen
Pack Sizes: 5 Kg
