161519
Sodium metabisulfite
reagent grade, 97%
Synonym(s):
Sodium disulfite, Sodium pyrosulfite
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About This Item
Linear Formula:
Na2S2O5
CAS Number:
Molecular Weight:
190.11
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.55
Assay:
97%
Grade:
reagent grade
Form:
powder or crystals
Solubility:
water: soluble 650 g/L at 20 °C
grade
reagent grade
Assay
97%
form
powder or crystals
pH
4.5 (20 °C, 50 g/L)
mp
>300 °C (lit.)
solubility
water: soluble 650 g/L at 20 °C
SMILES string
[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
InChI
1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI key
HRZFUMHJMZEROT-UHFFFAOYSA-L
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General description
Sodium metabisulfite (MBS, Sodium disulfite) is the sodium salt of disulphurous (pyrosulfurous) acid. It is also commonly added to various food products and wines as a preservative.
Application
Sodium metabisulfite may be used to initiate the cross-linking of polybutadiene by free radical polymerization. It may be used to prevent the oxidation (as antioxidant) during the preparation of stock solutions of 6-hydroxydopamine (6-OHDA) and 6-OHDA HBr in various studies.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1
Supplementary Hazards
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Johanne Louise Neiiendam et al.
Journal of neurochemistry, 91(4), 920-935 (2004-11-05)
The Neural Cell Adhesion Molecule (NCAM) plays a crucial role in development of the central nervous system regulating cell migration, differentiation and synaptogenesis. NCAM mediates cell-cell adhesion through homophilic NCAM binding, subsequently resulting in activation of the fibroblast growth factor
W Wright et al.
The American review of respiratory disease, 141(6), 1400-1404 (1990-06-01)
Sodium metabisulfite (MBS) is used as a preservative in food and wine and frequently triggers attacks of asthma. To determine the characteristics of responses to inhaled MBS, 30 asthmatic subjects and 16 nonasthmatic subjects inhaled MBS, in concentrations of 6.2
Zhiliang Cheng et al.
Langmuir : the ACS journal of surfaces and colloids, 24(15), 8169-8173 (2008-06-24)
The ability of chelated Gd to serve as an effective magnetic resonance (MR) contrast agent largely depends on fast exchange rates between the Gd-bound water molecules and the surrounding bulk water. Because water diffuses slowly across lipid bilayers, liposomes with
Ivana Mara da Costa Machado Matos Carvalho et al.
Chemosphere, 82(7), 1056-1061 (2010-11-09)
Sodium metabisulfite is used in marine shrimp harvesting to prevent the occurrence of black spots. Shrimps are soaked in a sodium metabisulfite solution in ice, which is disposed of in sewages that run into marine canals, creating an environmental hazard.
Jeffrey N Hemenway et al.
Journal of pharmaceutical sciences, 101(9), 3305-3318 (2012-05-23)
A 2,4-dinitrophenylhydrazine (DNPH) precolumn derivatization high-performance liquid chromatography-ultraviolet detection (HPLC-UV) method was developed to quantify levels of formaldehyde and acetaldehyde in polyethylene glycol (PEG) solutions. Formic acid and acetic acid were quantified by HPLC-UV. Samples of neat and aqueous PEG
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