243973

Sodium bisulfite

ACS reagent

• 동의어(들): Sodium hydrogensulfite
• 실험식(Hill 표기법): NaHSO₃
• CAS Number: 7631-90-5
• Molecular Weight: 104.06
• UNSPSC 코드: 12352302
• PubChem Substance ID: 24854644
• NACRES: NA.21

속성

• Grade: ACS reagent
• Quality Level: 200
• 형태: powder or crystals
• 농도: ≥58.5% SO₂
• 불순물: ≤0.005% insolubles
• pH: 4.3 (10 g/L)
• 음이온 미량물: chloride (Cl^-): ≤0.02%
• 양이온 미량물: 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

설명

일반 설명

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.

애플리케이션

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.

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.

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H302
• 예방조치 성명서: P264 - P270 - P301 + P312 - P501
• Hazard Classifications: Acute Tox. 4 Oral
• 보충제 위험성: EUH031
• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable