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

Product name:  Sodium Sulfite Anhydrous

Molecular formula : Na2SO3

Appearance : white crystalline powder

1)Na2SO3                : - - - - - -98.5%min

2)Iron (as Fe)          : - - - - - - 5ppmmax

3)Water Insolution      : - - - - - - 0.01%max

4)Free alkali(as Na2CO3): - - - - - -0.003%max

5)Chloride (as NaCl)    : - - - - - - 0.01%max