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Selenous acid, Puratronic™, 99.999% (metals basis)

Catalog No. p-7048555
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100 g
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Catalog No. Quantity
AA1085514 25 g
AA1085522 100 g
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Catalog No. AA1085514 Supplier Thermo Scientific Chemicals Supplier No. 01085514
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Description

CAS: 7783-00-8 | H2O3Se | 128.98 g/mol

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 Formula H2O3Se
Molecular Weight (g/mol) 128.98
MDL Number MFCD00011331
InChI Key MCAHWIHFGHIESP-UHFFFAOYSA-N
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
PubChem CID 1091
ChEBI CHEBI:26642
IUPAC Name selenous acid
SMILES O[Se](O)=O

Specifications

Melting Point 70°C (decomposition)
Odor Odorless
Sensitivity Hygroscopic
Quantity 25 g
Physical Form Crystalline Aggregates
UN Number UN3290
Merck Index 14,8430
Solubility Information Soluble in water and ethanol.
Formula Weight 128.97
Percent Purity 99.999%
Grade Puratronic
Assay (metals basis)
Chemical Name or Material Selenous acid
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Safety and Handling

Hazard Category H301+H331-H373
Hazard Statement GHS H Statement
H301-H331-H373
Toxic if swallowed.
Toxic if inhaled.
May cause damage to organs through prolonged or repeated exposure.
Precautionary Statement P260-P264b-P270-P271-P301+P310-P304+P340-P311-P314-P330-P501c
DOTInformation Transport Hazard Class: 6.1; Packing Group: II; Proper Shipping Name: TOXIC SOLID, CORROSIVE, INORGANIC, N.O.S.
EINECSNumber 231-974-7
TSCA Yes
Recommended Storage Ambient temperatures

RUO – Research Use Only