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161519

Sodium metabisulfite

Name: Sodium metabisulfite
Brand: SIGALD

reagent grade, 97%

Synonym(s):

Sodium disulfite, Sodium pyrosulfite

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About This Item

Linear Formula:

Na₂S₂O₅

CAS Number:

7681-57-4

Molecular Weight:

190.11

NACRES:

NA.55

PubChem Substance ID:

329751131

UNSPSC Code:

12352302

EC Number:

231-673-0

MDL number:

MFCD00167602

Assay:

97%

Grade:

reagent grade

Form:

powder or crystals

Solubility:

water: soluble 650 g/L at 20 °C

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Properties

grade

reagent grade

Quality Level

100

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

Description

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.

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pictograms

GHS05,GHS07

signalword

Danger

hcodes

H302,H318

pcodes

P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

supp_hazards

EUH031

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Paramagnetic porous polymersomes.

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

Effect of inhaled preservatives on asthmatic subjects. I. Sodium metabisulfite.

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

An NCAM-derived FGF-receptor agonist, the FGL-peptide, induces neurite outgrowth and neuronal survival in primary rat neurons.

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

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Global Trade Item Number

SKU	GTIN
161519-2.5KG	04061832579016
161519-500G	04061838746443