Product name: sodium sulphite Molecular formula : Na2SO3 Appearance : white crystalline powder Purity: 98%

Product name:  sodium sulphite

Molecular formula : Na2SO3

Appearance : white crystalline powder

 

Quality standard: HG/T 29672000

 

Sepcification:

 

Index name	Premium grade
	Super grade	First grade	Salable product	Industrial grade
Sodium sulfite ( Na2SO3 ) , % ≥	99.0	97.0	93.0	90.0
Fe , ≤	0.002	0.005	0.01	/
Water insoluble matter , % ≤	0.05	0.03	0.05	/
Free alkali ( as Na2SO3 ) , % ≤	0.10	0.40	0.60	/
Na2SO4 , % ≤	2.50	/	/	/
NaCl , % ≤	0.35	/	/	/

Packing: double-layer plastic woven bag.

 

Uses : used in medicine, papermaking, tannage, leather, printing, dyeing, bleaching and food .

sodium sulphite