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08981

Supelco

Sodium sulfite

analytical standard

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Synonym(s):
E221
Linear Formula:
Na2SO3
CAS Number:
7757-83-7
Molecular Weight:
126.04
EC Number:
231-821-4
MDL number:
MFCD00003503
UNSPSC Code:
85151701
PubChem Substance ID:
329748654
NACRES:
NA.24

grade

analytical standard

Quality Level

100

Assay

≥98% (RT)

shelf life

limited shelf life, expiry date on the label

solubility

H2O: 1 g/10 mL, clear, colorless

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

SMILES string

[Na+].[Na+].[O-]S([O-])=O

InChI

1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2

InChI key

GEHJYWRUCIMESM-UHFFFAOYSA-L

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General description

This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.

Find all available reference materials for compounds listed in 10/2011 here

Application


  • Oxygen scavenging and contaminant removal: Sodium sulfite′s efficacy in removing organic contaminants through oxygen scavenging in various chemical systems was documented, illustrating its critical role in environmental cleanup and wastewater treatment technologies (Zhou et al., 2023).

  • Disinfection by-product management: Sodium sulfite is reviewed for its impact and mechanisms as a residual chlorine quencher, highlighting its potential to reduce harmful disinfection by-products in water treatment processes, which is vital for ensuring safe pharmaceutical and biotechnical operations (Li et al., 2023).

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Hazem Matar et al.
Cutaneous and ocular toxicology, 36(3), 211-219 (2016-11-08)
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Journal of dairy science, 97(12), 7833-7843 (2014-09-30)
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PloS one, 9(11), e112883-e112883 (2014-11-26)
The insulin gene mutation c.137G>A (R46Q), which changes an arginine at the B22 position of the mature hormone to glutamine, causes the monogenic diabetes variant maturity-onset diabetes of the young (MODY). In MODY patients, this mutation is heterozygous, and both
Picheng Gao et al.
Dalton transactions (Cambridge, England : 2003), 44(2), 773-781 (2014-11-20)
A facile synthetic route for TiO2-CdSe heterostructures was proposed based on dentate binding of TiO2 to carboxyl. Carboxyl functionalized CdSe quantum dots (CF-CdSe QDs) were successfully bonded onto TiO2 nanoparticles (NPs), which could significantly improve the photoelectrochemical (PEC) properties of
H A Ramirez Ramirez et al.
Journal of dairy science, 98(3), 1903-1914 (2014-12-31)
Two experiments were conducted to evaluate the additive effects of starch and fat as risk factors associated with milk fat depression in dairy diets containing corn dried distillers grains with solubles. In experiment 1, 4 multiparous ruminally cannulated Holstein cows
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