Description
Specifications Table
Product Name – Phosphomolybdic acid LR
Quantity/Pack Size – 25 g
Form – Powder
Grade – LR (Laboratory Reagent)
Application – Analytical reagent, qualitative inorganic analysis
Product Overview
Phosphomolybdic acid LR is a high-purity laboratory reagent widely used in qualitative inorganic analysis due to its selective reactivity with specific ions. This yellow crystalline powder is valued for its ability to form distinct colored precipitates, making it indispensable in gravimetric and colorimetric determinations. The LR grade ensures minimal impurities, guaranteeing reliable and reproducible results in analytical procedures. Its solubility in water and alcohol allows for versatile preparation of test solutions, while its stability under standard lab conditions ensures long-term usability. As a complex heteropoly acid, it functions as an oxidizing agent in certain redox titrations, further expanding its utility in chemical testing. The reagent is particularly effective in detecting alkaloids, phosphates, and certain metal ions, making it a staple in both academic and research laboratories. Proper handling and storage are essential to maintain its efficacy, as exposure to moisture or contaminants can compromise its performance. Whether used in spot tests or systematic analysis, phosphomolybdic acid LR delivers consistent performance for demanding laboratory applications.
FAQs
1. What is the shelf life of phosphomolybdic acid LR when stored properly?
When stored in a tightly sealed container away from moisture and direct sunlight, phosphomolybdic acid LR typically retains its stability for 2-3 years from the date of manufacture. Always check for any physical changes before use.
2. Can this reagent be used for quantitative analysis?
While primarily used for qualitative tests, phosphomolybdic acid LR can be employed in quantitative analysis when standardized properly, though its application is more common in semi-quantitative or confirmatory tests due to its precipitation-based reactions.
3. What safety precautions should be taken while handling this chemical?
Always wear appropriate personal protective equipment, including gloves, goggles, and a lab coat. Avoid inhalation of dust and ensure the workspace is well-ventilated, as the reagent can cause irritation to the skin, eyes, and respiratory tract.
4. Is phosphomolybdic acid LR compatible with plastic containers for storage?
It is generally safe to store in high-density polyethylene or polypropylene containers, but glass containers with tight-fitting lids are preferred to prevent any potential leaching or contamination over prolonged storage.
5. How does the LR grade differ from AR or analytical grade?
The LR (Laboratory Reagent) grade is suitable for general laboratory use and educational purposes, while AR (Analytical Reagent) grade undergoes stricter quality control for higher purity, making it ideal for precise analytical applications where trace impurities could interfere with results.
