Sodium sulfite USP-NF 500GM Go Back

CASR

: 7757-83-7

Molecular Formula

: Na2SO3

Molecular Weight

: 126.04
Specifications  
Description: Colorless crystals.
Solubility: Freely soluble in water;very slightly soluble in alcohol .
Identification A (By Chemical test): A pink color should produce
Identification B (sulfate): Colorless solution; should yield a white precipitate with barium chloride which should insoluble in hydrochloric acid and nitric acid
Identification C (for Sodium): A dense precipitate should produce.
Assay: 95.0% - 100.5%
Iron: NMT 10 ppm
Selenium (Se): NMT 10 ppm
Thiosulfates: NMT 0.1%
Zinc (Zn): NMT 25 ppm
Color and Clarity of solution: Clear and colorless solution
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