Sodium Metabisulphite
product name:sodium metabisulphite
|
Item |
Chinese standard |
Company standard |
|
Main content(Na2S2O5) |
≥96.5 |
≥97.5 |
|
Fe(As content Fe) |
≤0.003 |
≤0.0015 |
|
Clarity |
Pass test |
Clear |
|
Heavy metal content (Pb) |
≤0.0005 |
≤0.0002 |
|
Arsenic content (As) |
≤0.0001 |
≤0.0001 |
Molecular Formula:Na2S2O5
Molecular Weight:190.10
Appearance: white crystal powder.
Packing: polypropylene weaving bag, paper plastic complex bag and kraft lined with polyethylene plastic bag.
Net weight: 25, 50, 1000 kilograms per bag or according to demands from customers
Usage:
1.Bleaching agent for textile fibres, paper pulps
2.Colors stripper and dechlorination
3.Preparation of Indigo Vat Dye
4.solubilizing and acidyfing agent for leather industries
5.wastewater treatment
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