Sodium metabisulfite, puriss., meets analytical specification of Ph. Eur., BP, NF, FCC, E223, dry, 97-100.5%

Code: 13459-1KG-R D2-231

Application

Sodium metabisulfite was used to initiate the cross-linking of polybutadiene in the cores of the vesicle membranes by free radical polymerization in solution.

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Application

Sodium metabisulfite was used to initiate the cross-linking of polybutadiene in the cores of the vesicle membranes by free radical polymerization in solution. It has been used to prevent the oxidation (as antioxidant) during the preparation of stock solutions of 6-hydroxydopamine in various studies.

General description

Sodium metabisulfite (MBS, Sodium disulfite) is an inorganic salt. It is the sodium salt of disulphurous (pyrosulfurous) acid. It is widely used as reducing agent in textile and photography industry. It is commonly added to various foods and wines as preservative.

anion traceschloride (Cl-): ≤100 mg/kg
assay65.0-67.4% SO2 basis, 97-100.5%
cation tracesCu: ≤10 mg/kg, Se: ≤5 mg/kg, Pb: ≤2 mg/kg, Fe: ≤10 mg/kg, Zn: ≤10 mg/kg, Hg: ≤1 mg/kg, As: ≤2 mg/kg
formpowder or crystals
gradepuriss.
impuritiesresidue of solvents, complies, ≤0.02% thiosulfate (S2O3)
InChI keyHRZFUMHJMZEROT-UHFFFAOYSA-L
InChI1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
mp>300 °C (lit.)
pH3.5-5.0 (20 °C, 5%)
Quality Level200
qualitydry, meets analytical specification of Ph. Eur., BP, NF, FCC, E223
SMILES string[Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
suitabilitycomplies for appearance of solution
Cas Number7681-57-4
This product has met the following criteria to qualify for the following awards:



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