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By certification 
Molecular Formula: Na2SO3
Molecule Weight: 126.04
Appearance: white or light yellow crystalline powder
Quality standard: GB1894——2005
Company standard
|
Item |
Value |
sodium sulfite (Na2SO3), mass fraction /% |
≥ 97.0 |
Fe, mass fraction /% |
≤ 0.01 |
Free alkali(as Na2SO3), mass fraction /% |
≤ 0.60 |
Heavy metals(as Pb), mass fraction /% |
≤ 0.001 |
As (As), mass fraction /% |
≤ 0.0002 |
Clarity |
Passed |
Chinese standard
|
Item |
Value |
sodium sulfite (Na2SO3), mass fraction /% |
≥ 96.0 |
Fe, mass fraction /% |
≤ 0.01 |
Free alkali(as Na2SO3), mass fraction /% |
≤ 0.60 |
Heavy metals(as Pb), mass fraction /% |
≤ 0.001 |
As (As), mass fraction /% |
≤ 0.0002 |
Clarity |
Passed |
Uses:dechlorinating agent, bleaching agent, developer, reductant, stabilizer, or used in papermaking, electronic and water treatment industry.
Packing:in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, kraft bag, etc.
Net weight:25,50,1000kilograms per bag or following your demand.
We welcome your orders for bromide products, magnesium chloride, industrial crude salt and bittern serial chemicals.
