Description

Selenium-79 is a stable, non-radioactive isotope of selenium, identified by CAS No. 15758-45-9. This high-purity isotopic material is critical for advanced research and industrial applications where precise atomic composition and minimal isotopic interference are required. It is essential for scientists and manufacturers in fields such as nuclear magnetic resonance (NMR) spectroscopy, isotopic tracer studies, and the development of specialized semiconductors and photoconductors.

Application

• Isotopic Tracer Studies: Used as a stable tracer in metabolic, environmental, and geological research to track selenium pathways.
• NMR Spectroscopy: Serves as an isotopic label or reference standard in nuclear magnetic resonance for structural analysis of selenium-containing compounds.
• Advanced Material Science: Employed in the research and development of specialized semiconductors, photoconductors, and photovoltaic cells with tailored electronic properties.
• Nuclear Industry Research: Utilized in studies related to nuclear reactions and the behavior of selenium isotopes.
• Analytical Standards: Acts as a primary standard for calibrating mass spectrometers and other analytical instruments in isotopic analysis.
• Nutritional & Biomedical Research: Used in precise studies investigating the role of specific selenium isotopes in biological systems and selenoprotein synthesis.

Basic Information

Product Name	Selenium-79
CAS No.	15758-45-9
Molecular Formula	Se
Molecular Weight	78.9185 g/mol (for 79Se)
Synonyms	79Se; Selenium-79 isotope; Selenium, isotope of mass 79; Selenium 79Se; Selenium, isotopic mass 79; Stable Selenium-79; 79Se isotope; Selenium (79Se)
EINECS	Contact for details

Quality Control

Our Selenium-79 is produced and handled under stringent conditions to ensure exceptional isotopic purity and chemical integrity. Each batch undergoes rigorous analysis using advanced techniques such as Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to verify isotopic enrichment and assess chemical purity. A comprehensive Certificate of Analysis (COA) detailing isotopic abundance, chemical assay, and trace metal content is provided with every shipment to guarantee consistency and reliability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its light-sensitive nature and tendency to be easily oxidized, it is recommended to handle and store the material under an inert atmosphere (e.g., argon or nitrogen) for long-term preservation of quality. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Gray to black solid
Isotopic Enrichment (79Se)	> 99.0% (atom%)
Chemical Purity (by ICP-MS)	> 99.9%
Identification (IR / Raman)	Conforms
Trace Metals (ICP-MS)	< 100 ppm total

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.