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Sodium metabisulfite

SIGALD/161519 - reagent grade, 97%

Synonym: Sodium disulfite; Sodium pyrosulfite

CAS Number: 7681-57-4
Empirical Formula (Hill Notation): Na2O5S2
Molecular Weight: 190.11
EC Number: 231-673-0
MDL Number: MFCD00167602
Linear Formula: Na2S2O5
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-161519-500G 500 g
 $36.00
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45-161519-2.5KG 2.5 kg
 $103.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 161519-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: 161519-2.5KG

 

assay 97%
form powder or crystals
grade reagent grade
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
mp >300 °C (lit.)
pH 4.5 (20 °C, 50 g/L)
Quality Level 100 
SMILES string [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
solubility water: soluble 650 g/L at 20 °C
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.
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.
Packaging: 2.5 kg in poly bottle
Packaging: 500 g in poly bottle
Purity 97%
mp >300 °C (lit.)
UNSPSC 12352302

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