Selenious acid (CAS 7783-00-8, H2O3Se, MW 128.98) is the inorganic oxyacid of tetravalent selenium and the free parent acid from which the selenite salts are derived, with selenium in the +4 oxidation state. On an elemental basis it is the most concentrated form in the family at roughly 61% selenium by weight, reflecting the absence of the sodium counter-ions carried by sodium selenite and sodium selenate. It shares the +4 (selenite) oxidation state of sodium selenite but is the free acid rather than the neutralized sodium salt, and it is wholly inorganic in contrast to the organic seleno-amino acids and the yeast matrix. Because it is handled in solution, we supply it exclusively in liquid trace-element format rather than as a powder or solid dosage form.
- Liquidi
Applications
Liquid trace-element supplements and multi-mineral drop formulations.
Documentation & quality
Every order is backed by the documents your quality team files, and the controls behind them.
Certificate of Analysis
every batchSpecification sheet
on requestAllergen statement
on requestGMO statement
on requestTraceability
on requestSafety Data Sheet
where applicableHow it’s controlled
- Identity verified on every incoming raw material
- Screened for heavy metals and microbial contaminants
- Full batch and lot traceability
- Produced under our certified GMP system
Other forms of Selenium
L-Selenomethionine
L-Selenomethionine
- CAS
- 3211-76-5
- Formula
- C5H11NO2Se
- Elemental
- ~40% Se
- Vegano
- Senza glutine
- Non OGM
Selenium-Enriched Yeast
Selenized Saccharomyces cerevisiae yeast (selenomethionine-rich matrix)
- Elemental
- ~0.1-0.2% Se (standardized to ~2000 ug/g)
- Vegano
- Senza glutine
- Non OGM
Sodium Selenite
Sodium selenite (anhydrous)
- CAS
- 10102-18-8
- Formula
- Na2O3Se
- Elemental
- ~46% Se
- Vegano
- Senza glutine
- Non OGM
Sodium Selenate
Sodium selenate (anhydrous)
- CAS
- 13410-01-0
- Formula
- Na2O4Se
- Elemental
- ~42% Se
- Vegano
- Senza glutine
- Non OGM
Se-Methyl-L-Selenocysteine
Se-methyl-L-selenocysteine
- CAS
- 26046-90-2
- Formula
- C4H9NO2Se
- Elemental
- ~43% Se
- Vegano
- Senza glutine
- Non OGM