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Merck

229857

Selenous acid

99.999% trace metals basis

Sinonimo/i:

Selenious acid

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50 G

211,00 €

500 G

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Informazioni su questo articolo

Formula condensata:
H2SeO3
Numero CAS:
7783-00-8
Peso molecolare:
128.97
NACRES:
NA.23
PubChem Substance ID:
24853753
UNSPSC Code:
12352300
EC Number:
231-974-7
MDL number:
MFCD00011331

Documenti fondamentali

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Nome del prodotto

Selenous acid, 99.999% trace metals basis

InChI key

MCAHWIHFGHIESP-UHFFFAOYSA-N

InChI

1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)

SMILES string

O[Se](O)=O

assay

99.999% trace metals basis

form

solid

mp

70 °C (dec.) (lit.)

density

3.004 g/mL at 25 °C (lit.)

Quality Level

200

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Questo articolo
211176S5261481505
Selenous acid 99.999% trace metals basis

Sigma-Aldrich

229857

Selenous acid

Selenous acid 98%

Sigma-Aldrich

211176

Selenous acid

Sodium selenite BioReagent, suitable for cell culture, ≥98%

Sigma-Aldrich

S5261

Sodium selenite

Acido sulfamico 99.999% trace metals basis

Sigma-Aldrich

481505

Acido sulfamico

assay

99.999% trace metals basis

assay

98%

assay

≥98%

assay

99.999% trace metals basis

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

form

solid

form

solid

form

powder

form

crystals

density

3.004 g/mL at 25 °C (lit.)

density

3.004  g/mL at 25 °C ((lit.)), 3.004 g/mL at 25 °C (lit.)

density

-

density

2.151 g/cm3 at 25 °C

mp

70 °C (dec.) (lit.)

mp

70  °C ((lit.)), 70 °C (dec.) (lit.)

mp

>350 °C (lit.)

mp

215-225 °C (dec.) (lit.)

Application

  • Selenic acid etching assisted vacancy engineering for designing highly active electrocatalysts toward the oxygen evolution reaction: Examination of the use of selenous acid in vacancy engineering for electrocatalysts (Zhang et al., 2021).
  • Europium (III) Catalysis for Reduction of Thionine Dye by Selenous Acid in Aqueous Sulfuric Acid Solutions: Study on the kinetics and mechanism of selenium(IV) reduction in aqueous sulfuric acid solutions (Fawzy, 2016).

General description

Selenous acid is a dibasic acid.[1] It is the oxoacid of selenium and can be formed by adding selenium dioxide gas to water. Selenous acid shows analogy to sulfurous acid. As a crystalline solid, the molecules are arranged in a pyramid and in a solution it behaves as a diprotic acid.[2]

Packaging

Packaged in High-Density Polyethylene (HDPE)

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificati d'analisi (COA)

Lot/Batch Number
MKCZ9052
MKCX3183
MKCV6374
MKCR9928
MKCP2742

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Ropp RC et al.
Encyclopedia of the Alkaline Earth Compounds null
M Rizki et al.
Environmental and molecular mutagenesis, 37(1), 70-75 (2001-02-15)
The genotoxic activity of three selenium compounds (sodium selenite, sodium selenate, and selenious acid) and the antigenotoxic effects of sodium selenite in combination with the chromium compound potassium dichromate were studied using the wing spot test of Drosophila melanogaster. This
Y Kayanoki et al.
Journal of biochemistry, 119(4), 817-822 (1996-04-01)
Selenium-dependent glutathione peroxidase (GPx) plays a protective role in oxidative stress-induced apoptosis. In this study, we demonstrated that MDBK cells, a bovine renal epithelial cell line, exhibited internucleosomal DNA fragmentation characteristic of apoptotic cell death under selenium-deficient conditions with lower
Thomas G Back et al.
The Journal of organic chemistry, 70(23), 9230-9236 (2005-11-05)
[Reaction: see text]. Several novel organoselenium and tellurium compounds were prepared and evaluated as mimetics of the selenoenzyme glutathione peroxidase, which protects cells from oxidative stress by reducing harmful peroxides with the thiol glutathione. The compounds were tested for catalytic
H Chen et al.
International journal of food microbiology, 18(2), 151-159 (1993-04-01)
Five Salmonella serotypes recovering from heat injury exhibited different kinetics of resuscitation and growth. Exponential growth was reached before full resuscitation. Fully resuscitated cells and uninjured cells at low cell densities exhibited sensitivity when transferred from non-selective media to selective
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