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243973 Sigma-Aldrich

Sodium bisulfite

ACS reagent

Synonym: Sodium hydrogensulfite

  • CAS Number 7631-90-5

  • Empirical Formula (Hill Notation) NaHSO3

  • Molecular Weight 104.06

  •  PubChem Substance ID 24854644

  •  NACRES NA.21

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Properties

Related Categories Chemical Synthesis, Essential Chemicals, Inorganic Salts, Research Essentials, Salts,
Quality Level   200
grade   ACS reagent
assay   ≥58.5% (SO2)
form   powder or crystals
impurities   ≤0.005% insolubles
pH   4.3 (10 g/L)
anion traces   chloride (Cl-): ≤0.02%
cation traces   Fe: ≤0.002%
  heavy metals (as Pb): ≤0.001%
SMILES string   [Na+].OS([O-])=O
InChI   1S/Na.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-2
InChI key   DWAQJAXMDSEUJJ-UHFFFAOYSA-L

Description

General description

The aqueous solutions of sodium bisulfite are acidic in nature. Degradation of sodium bisulfite with acid forms sulfur dioxide gas.

Application

Sodium bisulfite (NaHSO3) has been used as a reagent to compose the immunoprecipitation (IP) buffer to chemically modify DNA and to synthesize arsenolipids (AsL).
It can also be used as a reagent during the synthesis of 5,6-dihydrouracil-6-sulfonate.

Packaging

1, 2.5 kg in poly bottle

12 kg in poly drum

5, 100, 500 g in poly bottle

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Supplemental Hazard Statements 
EUH031
WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

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Peer-Reviewed Papers
15

References

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