SX0785
亚硫酸钠
anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
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线性分子式:
Na2SO3
化学文摘社编号:
分子量:
126.04
UNSPSC Code:
12352302
EC Index Number:
231-821-4
MDL number:
Assay:
≥98.0% (iodometric)
Grade:
ACS reagent
Form:
powder
Solubility:
220 g/L
产品名称
亚硫酸钠, anhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
InChI
1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
SMILES string
[Na+].[Na+].[O-]S([O-])=O
InChI key
GEHJYWRUCIMESM-UHFFFAOYSA-L
grade
ACS reagent
assay
≥98.0% (iodometric)
form
powder
impurities
≤0.005% Insoluble matter
≤0.03 meq/g Titrable free base
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
storage temp.
room temp
Quality Level
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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
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
Application
- Comparative Studies of Organic Contaminant Removal in Different Calcium Sulfite-Enhanced Oxidant/Fe(II) Systems: This research explores the effectiveness of sodium sulfite in enhancing the removal of organic contaminants through various oxidant systems. (Zhou et al., 2023).
- Review of Traditional and Emerging Residual Chlorine Quenchers on Disinfection By-Products: Focuses on the role of sodium sulfite as a residual chlorine quencher in water treatment processes, analyzing its impact on reducing harmful by-products and enhancing water quality (Li et al., 2023).
- Boosting the Photoelectrochemical Performance of Bismuth Vanadate Photoanode Through Homojunction Construction: Investigates how sodium sulfite can improve the photoelectrochemical properties of bismuth vanadate, significant for renewable energy applications, particularly in solar energy conversion (Wang et al., 2023).
- Light-driven Oxidative Demethylation Reaction Catalyzed by a Rieske-type Non-heme Iron Enzyme Stc2: Demonstrates the use of sodium sulfite in enzymatic reactions to achieve oxidative demethylation, which is crucial for synthetic biology and enzyme engineering (Hu et al., 2022).
- Preparation of Nano Disperse Dyes Using Sulfomethylated Lignin: Effects of Sulfonic Group Contents: Highlights the application of sodium sulfite in the preparation of environmentally friendly nano disperse dyes from lignin, emphasizing its potential in sustainable material science (Tang et al., 2023).
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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