243973
Sodium bisulfite
ACS reagent
Synonym(s):
Sodium hydrogensulfite
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About This Item
Recommended Products
grade
ACS reagent
Quality Level
form
powder or crystals
concentration
≥58.5% SO2
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
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General description
Sodium bisulfite is a widely used industrial chemical as a reducing agent, catalyst, and preservative in pharmaceuticals and foods due to its antioxidative and antibacterial effects.
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.
It can also be used as a reagent during the synthesis of 5,6-dihydrouracil-6-sulfonate.
Sodium bisulfite can be used as:
- A reagent to synthesize aldehyde-bisulfite adducts from aromatic and aliphatic aldehydes.
- A catalyst in the solvent-free etherification of aromatic/aliphatic alcohols to synthesize symmetric and unsymmetric ethers via intermolecular dehydration.
- An additive in the copper-catalyzed homocoupling of ketoxime carboxylates to synthesize symmetrical pyrroles.
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
supp_hazards
Storage Class
13 - Non Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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