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229857

Sigma-Aldrich

Selenous acid

99.999% trace metals basis

Sinónimos:

Selenious acid

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About This Item

Fórmula lineal:
H2SeO3
Número de CAS:
7783-00-8
Peso molecular:
128.97
EC Number:
231-974-7
MDL number:
MFCD00011331
UNSPSC Code:
12352300
PubChem Substance ID:
24853753
NACRES:
NA.23

assay

99.999% trace metals basis

form

solid

mp

70 °C (dec.) (lit.)

density

3.004 g/mL at 25 °C (lit.)

SMILES string

O[Se](O)=O

InChI

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

InChI key

MCAHWIHFGHIESP-UHFFFAOYSA-N

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General description

Selenous acid is a dibasic acid. 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.

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).

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

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Ropp RC et al.
Encyclopedia of the Alkaline Earth Compounds null
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
Thomas G Back et al.
Journal of the American Chemical Society, 124(41), 12104-12105 (2002-10-10)
1,2-Oxaselenolane Se-oxide is a novel cyclic seleninate ester that functions as a remarkably efficient glutathione peroxidase mimetic by catalyzing the reduction of tert-butyl hydroperoxide to tert-butyl alcohol in the presence of benzyl thiol. The seleninate ester can be conveniently generated
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
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