Product name: Sodium Sulfite Anhydrous Molecular formula : Na2SO3 Appearance : white crystalline powder Quality standa

Anhydrous Sodium sulfite

Appearance : white crystalline powder .

Molecular formula : Na2SO3

Packing : 25kg double-layer plastic woven bag.

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

Quality standard : Q/320124JM02-2003

Index name	Premium grade
	Super grade	First grade	Salable product	Industrial grade
Sodium sulfite ( Na2SO3 ) , % ≥	97.0	96.0	93.0	90.0
Fe , ?≤	0.003	0.005	0.01	/
Water insoluble matter , % ≤	0.02	0.03	0.05	/
Free alkali ( as Na2SO3 ) , % ≤	0.10	0.40	0.60	/
Na2SO4 , % ≤	2.50	/	/	/
NaCl , % ≤	0.10	/	/	/

Anhydrous Sodium Sulfite