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Sodium Sulfite anhydrous

Name: Sodium Sulfite anhydrous
Grade: Laboratory Analytical Reagent
Application: Synthesis, Redox
Synonyms: Hypo clear (photography), E221
CAS Number: 7757-83-7  EC Number: 231-821-4 Molar Mass: 126.04 g/mol Chemical Formula: Na2SO3
Download: Datasheet | CoA | SDS
سنتز و واکنشهای شیمیایی – اکسایش و کاهش – اکسنده ها و کاهنده ها – نمک ها
General information

General information

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
Specification

Specification

Assay (by iodometry) 95.0 – 100.5 %
Identification A Conforms
Identification B  (Sulfate) Conforms
Identification C  (Sodium) Conforms
Limit of thiosulfates 0.1 %
Color and clarity of solution Conforms
Elemental Impurities & Heavy Metals See COA
Residual solvents See COA
Ordering code

Ordering code

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
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