Selenous acid, Puratronic™, 99.999% (metals basis), Thermo Scientific Chemicals

Product Code	Brand	Quantity
11347007	Thermo Scientific Alfa Aesar 010855.14	25 g
11337007	Thermo Scientific Alfa Aesar 010855.22	100 g

Description

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.

Chemical Identifiers

• CAS: 7783-00-8
• Molecular Weight (g/mol): 128.98
• InChI Key: MCAHWIHFGHIESP-UHFFFAOYSA-N
• PubChem CID: 1091
• IUPAC Name: selenous acid

• Molecular Formula: H2O3Se
• MDL Number: MFCD00011331
• Synonym: selenious acid, selenious acid h2seo3, monohydrated selenium dioxide, unii-f6a27p4q4r, selenium dioxide, monohydrated, ccris 5530, selenious acid usp, selenious acid,selenous acid,monohydrated selenium dioxide, selenium, reference standard solution
• ChEBI: CHEBI:26642
• SMILES: O[Se](O)=O

Specifications

• CAS: 7783-00-8
• Odor: Odorless
• Molecular Formula: H2O3Se
• MDL Number: MFCD00011331
• Merck Index: 14,8430
• Solubility Information: Soluble in water and ethanol.
• SMILES: O[Se](O)=O
• Molecular Weight (g/mol): 128.98
• ChEBI: CHEBI:26642
• Percent Purity: 99.999%
• Assay: (metals basis)

• Melting Point: 70°C (decomposition)
• Sensitivity: Hygroscopic
• Physical Form: Crystalline Aggregates
• UN Number: UN3290
• Synonym: selenious acid, selenious acid h2seo3, monohydrated selenium dioxide, unii-f6a27p4q4r, selenium dioxide, monohydrated, ccris 5530, selenious acid usp, selenious acid,selenous acid,monohydrated selenium dioxide, selenium, reference standard solution
• InChI Key: MCAHWIHFGHIESP-UHFFFAOYSA-N
• IUPAC Name: selenous acid
• PubChem CID: 1091
• Formula Weight: 128.97
• Grade: Puratronic™
• Chemical Name or Material: Selenous acid

Safety and Handling

GHS H Statement
H301-H331-H373
Toxic if swallowed.
Toxic if inhaled.
May cause damage to organs through prolonged or repeated exposure.

P260-P264b-P270-P271-P301+P310-P304+P340-P311-P314-P330-P501c

H301+H331-H373

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Recommended Storage : Ambient temperatures

RUO – Research Use Only