CAS 7783-00-8: Ácido selênico
Descrição:
Ácido selênico, com a fórmula química H2SeO3, é um selenoácido que contém selênio em seu estado de oxidação +4. É um líquido incolor e inodoro que é altamente solúvel em água, formando uma solução fracamente ácida. Ácido selênico é conhecido por sua capacidade de atuar como agente redutor e pode participar de várias reações químicas, incluindo processos de oxidação-redução. É tipicamente produzido pela oxidação de selênio ou selenetos. O composto exibe propriedades semelhantes ao ácido sulfuroso, uma vez que ambos são oxoácidos de calcógenos. Ácido selênico é utilizado em química analítica e pode servir como precursor para a síntese de outros compostos de selênio. No entanto, é importante manuseá-lo com cuidado, pois é tóxico e pode representar riscos à saúde quando exposto. Medidas de segurança adequadas devem ser tomadas ao trabalhar com esta substância, incluindo o uso de equipamentos de proteção individual e trabalhar em uma área bem ventilada.
Fórmula:H2O3Se
InChI:InChI=1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)
Chave InChI:InChIKey=MCAHWIHFGHIESP-UHFFFAOYSA-N
SMILES:[Se](=O)(O)O
Sinónimos:- 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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8 produtos.
Selenous acid (99.999%-Se) PURATREM
CAS:Selenous acid (99.999%-Se) PURATREMFórmula:H2SeO3Pureza:(99.999%-Se)Cor e Forma:white xtl.Peso molecular:128.97Selenous acid, Puratronic™, 99.999% (metals basis)
CAS: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. Further, it is used in labeling radiopharmaceuticals. It is involved in the organic synthesis for the preparation of glyoxal. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:H2O3SePureza:99.999%Peso molecular:128.98Selenous acid, 97%
CAS: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 reagent for alkaloids and an oxidizing agent. Further, it is used in labeling radiopharmaceuticals. It is involved in the organic synthesis for the preparation of glyoxal. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:H2O3SePureza:97%Peso molecular:128.98Selenous acid
CAS:Fórmula:H2SeO3Pureza:97.0 - 103.0 %Cor e Forma:White or off-white powder or crystalsPeso molecular:128.97Selenious acid, 98%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:H2O3SePureza:98%Cor e Forma:White to off-white to light pink, Crystalline powder or crystals and/or chunksPeso molecular:128.98Selenious acid, 99.999%, (trace metal basis)
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:H2O3SePureza:99.999%Cor e Forma:White, CrystalsPeso molecular:128.98Selenious acid
CAS:Selenious acid is a white, odorless crystalline solid that is soluble in water. It has been used as a fixative agent in biological and biochemical studies. Selenium inhibits the activity of cyclin D2, nitrate reductase, and methyltransferases. Selenious acid also has inhibitory properties against human lung cells (HL-60). The rate constant for the reaction with selenite was determined to be 1.8 x 10^(-4) M-1 s-1 at 25 degrees Celsius, which is much higher than that of other metal ions tested. Selenious acid can be detected by chromatographic analysis and can be quantified by measuring the hydrogen selenide released during the reaction between it and water vapor.Pureza:Min. 95%Ref: 3D-FS34751
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