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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.
 

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