Description
Specifications Table
Product Name – Sodium nitroprusside LR
Quantity/Pack Size – 100 g
Form – Powder
Grade – LR (Laboratory Reagent)
Application – Analytical chemistry, qualitative tests
Product Overview
Sodium nitroprusside LR is a highly purified laboratory reagent designed for precision in qualitative and quantitative chemical analysis. This crystalline powder exhibits excellent solubility in water, forming a stable solution that facilitates accurate detection of sulfide ions and other analytes. Its distinct deep red color in solution aids in visual endpoint determination, making it a preferred choice for titrations and spectrophotometric assays. The LR grade ensures minimal impurities, reducing interference in sensitive tests. With a molecular formula of Na2[Fe(CN)5NO]·2H2O, this compound maintains stability under standard lab conditions when stored properly. Its rapid reaction kinetics and predictable behavior make it indispensable for protocols requiring reliable colorimetric indicators. The reagent is particularly valued for its ability to form intensely colored complexes, enhancing detection limits in trace analysis. Proper handling and storage are essential to preserve its efficacy, as exposure to light or moisture can degrade performance over time.
FAQs
1. What is the shelf life of Sodium nitroprusside LR when stored correctly?
When kept in a tightly sealed container away from light and moisture, Sodium nitroprusside LR typically maintains its stability for 24 months from the date of manufacture. Always check the batch-specific expiration date on the label for precise guidance.
2. Can this reagent be used for quantitative analysis without further purification?
The LR grade is sufficiently pure for most standard quantitative applications, though ultra-trace analysis may require additional purification steps. For routine lab use, the reagent performs reliably without further treatment.
3. What safety precautions should be taken while handling this chemical?
Always wear appropriate PPE including gloves, goggles, and a lab coat when handling. Work in a well-ventilated area or fume hood, as the compound releases cyanide under certain conditions. Avoid inhalation and direct skin contact.
4. How does Sodium nitroprusside LR compare to the AR grade version?
The LR grade contains slightly higher impurity levels compared to AR grade but remains suitable for most educational and research applications. AR grade offers superior purity for highly sensitive analyses where trace contaminants could interfere.
5. What is the recommended storage temperature for this product?
Store at room temperature between 15-30°C in its original container. Avoid refrigeration as condensation may compromise the powder’s integrity. Keep away from direct sunlight and heat sources.
