31448

Sigma-Aldrich

Sodium metabisulfite

puriss. p.a., ACS reagent, reag. Ph. Eur., dry, 98-100.5%

Sinônimo(s):
Sodium disulfite, Sodium pyrosulfite
Fórmula linear:
Na2S2O5
Número CAS:
Peso molecular:
190.11
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NB.24

Nível de qualidade

200

grau

ACS reagent
puriss. p.a.

Agência/Método

reag. Ph. Eur.

teor

98-100.5%

forma

powder

qualidade

dry

Impurezas

≤0.01% thiosulfate (S2O3)

pH

3.5-5.0 (20 °C, 5%)

pf

>300 °C (lit.)

traços de ânion

chloride (Cl-): ≤50 mg/kg

traços de cátion

As: ≤0.5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤100 mg/kg
Ni: ≤50 mg/kg
Pb: ≤5 mg/kg
Zn: ≤10 mg/kg

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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Descrição geral

Sodium metabisulfite (MBS, Sodium disulfite) is an inorganic salt. It is the sodium salt of disulphurous (pyrosulfurous) acid. It is widely used in textile dyeing, photography and paper industry. It is also commonly added to various food products and wines as a preservative.

Aplicação

Sodium metabisulfite may be used as an initiator during the cross-linking polymerization of polybutadiene in the cores of the vesicle membranes. It may be added as an antioxidant during the preparation of stock solutions of 6-hydroxydopamine in various studies.

Embalagem

1, 2.5, 6×2.5 kg in poly bottle
500 g in poly bottle

Pictogramas

CorrosionExclamation mark

Palavra indicadora

Danger

Frases de perigo

hazcat

Acute Tox. 4 Oral - Eye Dam. 1

Perigos de suplementos

EUH031

storage_class_code

13 - Non Combustible Solids

WGK Alemanha

WGK 1

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Certificado de análise

Certificado de origem

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...
Eagleson M.
Concise Encyclopedia Chemistry, 337-337 (1994)
Laurie H L Sellings et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 23(15), 6295-6303 (2003-07-18)
Convergent evidence suggests that amphetamine (AMPH) exerts its rewarding and locomotor stimulating effects via release of dopamine in the nucleus accumbens. However, there is no consensus as to the relative contributions of core and medial shell subregions to these effects....
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...
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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