Sodium Sulfite anhydrous , Laboratory grade

  Na2SO3

CAS: 7757-83-7

MOLECULAR FORMULA:   Na2SO3

MOLAR MASS:  126.04 g/mol

  Na2SO3

Assay (by iodometry)   95.0 – 100.5 %
Identification  (Sulfate)   Conforms  
Identification  (Sodium)   Conforms  
Limit of iron 10 ppm
Limit of thiosulfates 0.1 %
Color and clarity of solution   Conforms  
Limit of Selenium 10 ppm
Limit of Zinc 25 ppm
Ordering code 1 kg 2.5 kg 5 kg 10 kg 20 kg
P.E. 415.05.01000.02   415.05.05000.02 415.05.10000.02  
Glass
File Title
Chemical formula:  Na2SO3 Molar Mass: 126.04 g/mol
Appearance: White solid Density: 2.63 g/cm3   (20 °C)
Solub. in water: 495 g/l (40 °C) Melting point: 500 °C
Boiling point: Decomposes Flash point: N/A
Storage temp.: Below  +30 °C Cautions: Irritant
R: 36/37/38 S: 50
HS-No.: 28321000 EC-Index-No.: 231-821-4
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