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

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.

Specifications

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

• Melting Point: 70°C (decomposition)
• Odor: Odorless
• Sensitivity: Hygroscopic
• Quantity: 100 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

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

SDS

RUO – Research Use Only