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SX0785 Supelco

Sodium Sulfite

anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Synonym: Sodium Sulfite

  • CAS Number 7757-83-7

  • Empirical Formula (Hill Notation) Na2O3S

  • Molecular Weight 126.04

  •  MDL number MFCD00003503

  •  EC Index Number 231-821-4

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Properties

Quality Level   200
assay   ≥98.0% (iodometric)
form   powder
pH   8.8-10 (20 °C, 50 g/L in H2O)
mp   >500 °C (decomposition)
solubility   220 g/L
anion traces   chloride (Cl-): ≤0.02%
cation traces   Fe: ≤ 0.001%
  heavy metals (as Pb): ≤ 0.001%
shipped in   ambient
InChI   1S/2Na.H2O3S.7H2O/c;;1-4(2)3;;;;;;;/h;;(H2,1,2,3);7*1H2/q2*+1;;;;;;;;/p-2
InChI key   WMJRPJZQQSSDBU-UHFFFAOYSA-L
storage conditions   Store at room temperature.

Description

Packaging

12 kg in Plastic drum

500 g in Plastic bottle

2.5 kg in Plastic bottle

Analysis Note

Assay (iodometric): 98.0% min
Chloride (Cl): 0.02% max
Free acid: To pass test
Heavy metals (as Pb): 0.001% max
Insoluble matter: 0.005% max
Iron (Fe): 0.001% max
Titrable free base: 0.03meq/g max

Safety & Documentation

Safety Information

WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles
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