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:
Pack Sizes: 5 Kg