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Documenti fondamentali

161519

Sigma-Aldrich

Metabisolfito di sodio

reagent grade, 97%

Sinonimo/i:

Bisolfito di sodio, Pirosolfito di sodio

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About This Item

Formula condensata:
Na2S2O5
Numero CAS:
Peso molecolare:
190.11
Numero CE:
Numero MDL:
Codice UNSPSC:
12352302
ID PubChem:
NACRES:
NA.55

Grado

reagent grade

Livello qualitativo

Saggio

97%

Stato

powder or crystals

pH

4.5 (20 °C, 50 g/L)

Punto di fusione

>300 °C (lit.)

Solubilità

water: soluble 650 g/L at 20 °C

Stringa SMILE

[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
HRZFUMHJMZEROT-UHFFFAOYSA-L

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Categorie correlate

Descrizione generale

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.

Applicazioni

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.

Pittogrammi

CorrosionExclamation mark

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Acute Tox. 4 Oral - Eye Dam. 1

Rischi supp

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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