Skip to Content
Merck
All Photos(1)

Key Documents

71932

Sigma-Aldrich

Sodium metabisulfite

tested according to Ph. Eur.

Synonym(s):

Natrii metabisulfis, Sodium disulfite, Sodium pyrosulfite

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
Na2S2O5
CAS Number:
Molecular Weight:
190.11
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21

Agency

USP/NF
tested according to Ph. Eur.

Quality Level

Assay

>97.5%

form

powder

mp

>300 °C (lit.)

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

Looking for similar products? Visit Product Comparison Guide

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Supplementary Hazards

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Jeffrey N Hemenway et al.
Journal of pharmaceutical sciences, 101(9), 3305-3318 (2012-05-23)
A 2,4-dinitrophenylhydrazine (DNPH) precolumn derivatization high-performance liquid chromatography-ultraviolet detection (HPLC-UV) method was developed to quantify levels of formaldehyde and acetaldehyde in polyethylene glycol (PEG) solutions. Formic acid and acetic acid were quantified by HPLC-UV. Samples of neat and aqueous PEG
Ivana Mara da Costa Machado Matos Carvalho et al.
Chemosphere, 82(7), 1056-1061 (2010-11-09)
Sodium metabisulfite is used in marine shrimp harvesting to prevent the occurrence of black spots. Shrimps are soaked in a sodium metabisulfite solution in ice, which is disposed of in sewages that run into marine canals, creating an environmental hazard.
Gisela Palma-Orozco et al.
Phytochemistry, 72(1), 82-88 (2010-11-23)
While a long shelf life for fruit products is highly desired, enzymatic browning is the main cause of quality loss in fruits and is therefore a main problem for the food industry. In this study polyphenol oxidase (PPO), the main
Ceren Kencebay et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 52, 129-136 (2012-11-22)
We aimed at investigating the effects of sulfite-induced lipid peroxidation and apoptosis mediated by secretory phospholipase A2 (sPLA2) on somatosensory evoked potentials (SEP) alterations in rats. Thirty male albino Wistar rats were randomized into three experimental groups as follows; control
David W Roberts et al.
Contact dermatitis, 66(3), 123-127 (2012-02-11)
Skin-sensitizing chemicals that cause allergic contact dermatitis do so by reacting with self-proteins such that the modified structure becomes antigenic. The reaction chemistry involved is well characterized, but there are exceptions, such as the occasional allergen sodium metabisulfite. To identify

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service