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08982

Sodium metabisulfite

analytical standard

Synonym(s):

E223, Sodium disulfite, Sodium pyrosulfite

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Size/SKUAvailabilityPrice
1 g
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1 280,00 CZK

About This Item

Linear Formula:
Na2S2O5
CAS Number:
Molecular Weight:
190.11
E Number:
E223
PubChem Substance ID:
UNSPSC Code:
85151701
NACRES:
NA.24
EC Number:
231-673-0
MDL number:

1 280,00 CZK


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grade

analytical standard

Quality Segment

assay

≥98.0% (iodometric, RT)

shelf life

limited shelf life, expiry date on the label

mp

>300 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg, thiosulfate (S2O32-): ≤500 mg/kg

cation traces

As: ≤0.5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤200 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

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

General description

Sodium metabisulfite is primarily used as an antioxidant and antimicrobial agent in a wide variety of foods and drugs. It is also used as the main additive in the prevention of melanosis in shrimp.

Application

Sodium metabisulfite may be used as an antioxidant which when added to anesthetic formulations serves to minimize epinephrine oxidation in the quantification of epinephrine in dental anesthetic solutions by capillary electrophoresis. Sodium metabisulfite may also be used as a standard in the determination of catecholamines in human plasma by high-performance liquid chromatography with electrochemical detection.

Analysis Note

metal trace analysis: corresponds to requirements

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This Item
PHR1434134591614396
description

analytical standard

description

Pharmaceutical Secondary Standard; Certified Reference Material

description

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

description

United States Pharmacopeia (USP) Reference Standard

application(s)

cleaning products
cosmetics
food and beverages
personal care

application(s)

pharmaceutical
pharmaceutical (small molecule)

application(s)

-

application(s)

pharmaceutical (small molecule)
pharmaceutical

grade

analytical standard

grade

pharmaceutical secondary standard, certified reference material

grade

puriss.

grade

pharmaceutical primary standard

format

neat

format

neat

format

-

format

neat

assay

≥98.0% (iodometric, RT)

assay

-

assay

97-100.5%

assay

-

anion traces

chloride (Cl-): ≤50 mg/kg, thiosulfate (S2O32-): ≤500 mg/kg

anion traces

-

anion traces

chloride (Cl-): ≤100 mg/kg

anion traces

-

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

-

shelf life

-


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Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Codes

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

supp_hazards

Storage Class

13 - Non Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable



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