Description
Specifications Table
Product Name – Selenious acid, 99.999%, (trace metal basis)
Quantity/Pack Size – 50GR
Form – Crystalline powder
Grade – 99.999% (trace metal basis)
Application – Analytical reagent, synthesis, trace metal analysis
Product Overview
Selenious acid (H₂SeO₃) at 99.999% purity (trace metal basis) is a high-grade reagent designed for applications demanding minimal metallic contamination. This crystalline powder offers exceptional consistency, making it ideal for precise analytical procedures, including spectrophotometry, gravimetric analysis, and trace metal determinations. Its ultra-low impurity profile ensures interference-free results, critical for research and quality control environments. The compound is highly soluble in water, forming selenious acid solutions that serve as a stable source of selenium (IV) ions. Due to its hygroscopic nature, proper storage in a tightly sealed container is recommended to prevent moisture absorption and maintain purity. Whether used as a primary standard or in synthesis reactions, this reagent delivers reliability, reducing variability in experimental outcomes. Compatibility with most laboratory glassware and standard analytical instruments further enhances its versatility.
FAQs
1. What is the shelf life of 99.999% selenious acid when stored properly?
When stored in a cool, dry place in its original, tightly sealed container, this grade of selenious acid remains stable for up to 24 months from the date of manufacture. Avoid exposure to humidity to prevent degradation.
2. Is this selenious acid compatible with plastic labware?
While it can be used with some high-density plastics like PP or PTFE, prolonged contact may cause corrosion. Glass or borosilicate containers are preferred for long-term storage and handling to avoid contamination.
3. Can this product be used as a substitute for selenium dioxide in reactions?
Yes, selenious acid can replace selenium dioxide in many redox reactions, as both provide selenium in the +4 oxidation state. However, adjustments in stoichiometry or pH may be required depending on the specific application.
4. What precautions should be taken while handling 99.999% selenious acid?
Always wear nitrile gloves, safety goggles, and a lab coat. Work in a fume hood due to its toxic and corrosive nature. Avoid inhalation of dust and ensure proper ventilation to minimize exposure risks.
5. Does this grade contain any stabilizers or additives?
No, this 99.999% pure selenious acid is free from stabilizers or additives, ensuring its suitability for trace metal analysis and other high-sensitivity applications where purity is critical.
