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CAS 7783-00-8

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Selenious acid

Description:
Selenious acid, with the chemical formula H2SeO3, is a seleno-acid that contains selenium in its +4 oxidation state. It is a colorless, odorless liquid that is highly soluble in water, forming a weakly acidic solution. Selenious acid is known for its ability to act as a reducing agent and can participate in various chemical reactions, including oxidation-reduction processes. It is typically produced by the oxidation of selenium or selenides. The compound exhibits properties similar to sulfurous acid, as both are oxoacids of chalcogens. Selenious acid is used in analytical chemistry and can serve as a precursor for the synthesis of other selenium compounds. However, it is important to handle it with care, as it is toxic and can pose health risks upon exposure. Proper safety measures should be taken when working with this substance, including the use of personal protective equipment and working in a well-ventilated area.
Formula:H2O3Se
InChI:InChI=1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)
InChI key:InChIKey=MCAHWIHFGHIESP-UHFFFAOYSA-N
SMILES:[Se](=O)(O)O
Synonyms:
  • Acide selenieux
  • Acido Selenioso
  • Micro Se
  • Monohydrated selenium dioxide
  • Selenige Saure
  • Selenious acid (H2SeO3)
  • Selenious acid (H<sub>2</sub>SeO<sub>3</sub>)
  • Selenium hydroxide oxide (Se(OH)<sub>2</sub>O)
  • Selenium hydroxide oxide (Se(OH)2O)
  • Selenious acid
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Found 5 products.
  • Selenous acid, 97%

    CAS:
    <p>As an oxidizing agent, as a reagent for alkaloidsSelenous acid is used in steel guns, wherein it changes the color of the steel from silver-grey to blue-grey. It serves as an important component of the Mecke reagent, which is utilized for drug testing. It acts as a source of selenium. It acts as a r</p>
    Formula:H2O3Se
    Purity:97%
    Molecular weight:128.98

    Ref: 02-012574

    5g
    66.00€
    50g
    79.00€
    250g
    244.00€
  • Selenous acid, Puratronic&trade;, 99.999% (metals basis)

    CAS:
    <p>Selenous acid is used in steel guns, wherein it changes the color of the steel from silver-grey to blue-grey. It serves as an important component of the Mecke reagent, which is utilized for drug testing. It acts as a source of selenium. It acts as a reagent for alkaloids and an oxidizing agent. Furt</p>
    Formula:H2O3Se
    Purity:99.999%
    Molecular weight:128.98

    Ref: 02-010855

    25g
    391.00€
    100g
    To inquire
  • Selenous acid (99.999%-Se) PURATREM

    CAS:
    <p>Selenous acid (99.999%-Se) PURATREM</p>
    Formula:H2SeO3
    Purity:(99.999%-Se)
    Color and Shape:white xtl.
    Molecular weight:128.97

    Ref: 08-34-0100

    25g
    271.00€
    100g
    775.00€
  • Selenous acid

    CAS:
    Formula:H2SeO3
    Purity:97.0 - 103.0 %
    Color and Shape:White or off-white powder or crystals
    Molecular weight:128.97

    Ref: 7W-GX7134

    50g
    74.00€
  • Selenous acid, 99.999%

    CAS:
    Formula:H2SeO3
    Molecular weight:128.97

    Ref: 7W-GX1905

    50g
    347.00€