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Safety Information

S9000

Sigma-Aldrich

Sodium metabisulfite

ReagentPlus®, ≥99%

Synonym(s):

Sodium disulfite, Sodium pyrosulfite

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About This Item

Linear Formula:
Na2S2O5
CAS Number:
7681-57-4
Molecular Weight:
190.11
EC Number:
231-673-0
MDL number:
MFCD00167602
UNSPSC Code:
12352302
PubChem Substance ID:
329824616
NACRES:
NA.21

Quality Level

200

product line

ReagentPlus®

Assay

≥99%

form

powder

pH

4.5 (20 °C, 50 g/L)

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

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Related Categories

Application


  • Sickle Erythrocyte Health Index: Discusses the use of sodium metabisulfite in stabilizing red blood cells for advanced computational analysis, crucial for the diagnosis and management of sickle cell disease (Ansong-Ansongton YON, Adamson TD, 2024).

  • Chemical and Thermal Treatment for Drying Cassava Tubers: Explores sodium metabisulfite′s role in enhancing the drying process of cassava, focusing on optimizing microstructure and dehydration kinetics, which is vital for food preservation and processing (Nainggolan EA, Banout J, Urbanova K, 2023).

  • Anionic Bio-flocculants from Sugarcane: Discusses the development of bio-flocculants using sodium metabisulfite for the purification of sucrose, demonstrating its potential in enhancing the sustainability of sugar processing industries (Leão S, Magalhães S, et al., 2023).

Other Notes

As a solid, this product is sodium metabisulfite, Na2S2O5. Dissolved in water, it yields NaHSO3.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H318

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Supplementary Hazards

EUH031

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

S9000-100G:
S9000-5KG:4548173951607
S9000-1KG:4548173951584
S9000-BULK:
S9000-500G:4548173951591
S9000-VAR-D:
S9000-H:
S9000-VAR:
S9000-CH:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Alan Brelsford et al.
Current biology : CB, 30(2), 304-311 (2020-01-07)
Supergenes, clusters of tightly linked genes, play a key role in the evolution of complex adaptive variation [1, 2]. Although supergenes have been identified in many species, we lack an understanding of their origin, evolution, and persistence [3]. Here, we
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
I U Nieves et al.
Bioresource technology, 102(13), 6959-6965 (2011-05-03)
Microaeration (injecting air into the headspace) improved the fermentation of hemicellulose hydrolysates obtained from the phosphoric acid pretreatment of sugarcane bagasse at 170°C for 10 min. In addition, with 10% slurries of phosphoric acid pretreated bagasse (180°C, 10 min), air
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.
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
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