Sigma-Aldrich 243973 Sodium bisulfite ACS reagent 2.5 kg
Kategori
Marka
Stok Kodu
LB.SA.243973-2.5KG
Kısa Bilgi
Synonym(s): Sodium hydrogensulfite Empirical Formula (Hill Notation): NaHSO3 CAS Number: 7631-90-5 Molecular Weight: 104.06 PubChem Substance ID: 24854644 NACRES: NA.21
Bilgi
CAS Number: 7631-90-5
| Sigma-Aldrich 243973 Sodium bisulfite ACS reagent 2.5 kg |
| Synonym(s): Sodium hydrogensulfite Empirical Formula (Hill Notation): NaHSO3 CAS Number: 7631-90-5 Molecular Weight: 104.06 PubChem Substance ID: 24854644 NACRES: NA.21 |
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PROPERTIES
grade ACS reagent
Quality Level 200 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 DESCRIPTION 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.[1] Application Sodium bisulfite (NaHSO3) has been used as a reagent to compose the immunoprecipitation (IP) buffer to chemically modify DNA[2] and to synthesize arsenolipids (AsL).[3] It can also be used as a reagent during the synthesis of 5,6-dihydrouracil-6-sulfonate.[4] 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. |
Tavsiye Ürünler
1.373,70 TL + KDV
1.648,44 TL
