FOOD GRADE SODIUM METABISULPHITE
Molecular Formula:Na2S2O5
CAS#:7681-57-4
HS Code:28321000
Appearance:White powder
Qualities are conformed:GB1893-2000
ITEMS | UNIT | SPECIFICATION |
Purity | (%)min | 97 |
As | (ppm) max | 2 |
Fe | (ppm) max | 30 |
Pb | (ppm) max | 5 |
Cd | (ppm) max | 5 |
PH | 4-5 | |
Water insolubles | (%)max | 0.03 |
Usage
it is for printing and dyeing industry, organic synthesis, printing, leather, pharmaceutical and other sectors; in food processing as preservatives, bleaching agents, baking powder.And used in industrial mineral processing.
Packing
Net 25kgs woven bags with inner liner.
Storage
Sealed in cool and dry place.