Description
Specifications Table
Product Name – Selenium Dioxide LR
Quantity/Pack Size – 100 g
Form – Powder
Grade – LR (Laboratory Reagent)
Application – Oxidizing agent, analytical reagent
Product Overview
Selenium Dioxide LR is a high-purity laboratory reagent designed for demanding applications requiring consistent performance. This fine, white to slightly yellow crystalline powder offers exceptional reactivity as an oxidizing agent, making it indispensable in inorganic synthesis and analytical chemistry. With a minimum assay of 99%, it ensures reliable results in qualitative and quantitative analyses. Its hygroscopic nature necessitates careful handling and storage in airtight containers to maintain stability. The LR grade designation guarantees compliance with laboratory standards, providing researchers with a dependable reagent for critical procedures. This compound demonstrates excellent solubility in water and ethanol, facilitating easy preparation of solutions. Its molecular formula (SeO₂) and molecular weight of 110.96 g/mol contribute to its predictable behavior in chemical reactions. The product undergoes rigorous quality control to eliminate impurities, ensuring batch-to-batch consistency. Proper storage in a cool, dry place away from incompatible substances preserves its efficacy over extended periods.
FAQs
1. What precautions should be taken when handling Selenium Dioxide LR?
Always wear appropriate personal protective equipment including gloves, goggles, and lab coat when handling this compound. Work in a well-ventilated area or fume hood due to its toxic nature. Avoid inhalation of dust and skin contact, as it can cause irritation and other health effects.
2. How should Selenium Dioxide LR be stored for long-term use?
Store in a tightly sealed container in a cool, dry place away from direct sunlight and incompatible substances. Keep the container properly labeled and separate from reducing agents, organic materials, and other reactive chemicals to prevent potential reactions.
3. What is the typical shelf life of Selenium Dioxide LR when stored properly?
When stored under recommended conditions in its original, unopened container, Selenium Dioxide LR typically maintains its specified purity for 2-3 years from the date of manufacture. Always check the label for the exact expiration date.
4. Can Selenium Dioxide LR be used in aqueous solutions?
Yes, Selenium Dioxide LR is soluble in water, forming selenious acid. The solubility is approximately 38.4 g/100 mL at 14°C, making it suitable for preparing aqueous solutions for various laboratory applications.
5. What are the key differences between LR grade and AR grade Selenium Dioxide?
The LR (Laboratory Reagent) grade is suitable for general laboratory use and educational purposes, while AR (Analytical Reagent) grade offers higher purity and is intended for more precise analytical applications. LR grade typically has slightly more impurities but remains cost-effective for most routine laboratory procedures.
