Description
Specifications Table
Product Name – Sodium nitrite LR
Quantity/Pack Size – 500 g
Form – Crystalline powder
Grade – LR (Laboratory Reagent)
Application – Chemical synthesis, food preservation, analytical testing
Product Overview
Sodium nitrite LR is a high-purity laboratory reagent designed for precision in chemical reactions and analytical procedures. This crystalline powder, with a minimum assay of 99%, ensures consistent results in synthesis, preservation, and testing applications. Its stable composition and low impurity levels make it a reliable choice for laboratories requiring accurate measurements. The LR grade designation guarantees adherence to strict quality standards, making it suitable for both routine and specialized experiments. Sodium nitrite functions as a reducing agent in various chemical processes and is particularly valued for its role in diazotization reactions. Its solubility in water (approximately 82 g/100 mL at 20°C) allows for easy preparation of solutions at different concentrations. The compound’s oxidative properties contribute to its effectiveness in corrosion inhibition and as a reagent in qualitative analysis. Proper storage in a cool, dry environment maintains its stability and extends shelf life. This product is packaged in airtight containers to prevent moisture absorption and contamination, ensuring long-term reliability for laboratory use.
FAQs
1. What is the shelf life of sodium nitrite LR when stored properly?
When stored in a tightly sealed container away from moisture and direct sunlight, sodium nitrite LR maintains its stability for up to 24 months from the date of manufacture. Regular checks for caking or discoloration are recommended.
2. Can this sodium nitrite be used in food preservation applications?
While sodium nitrite LR is chemically identical to food-grade versions, this LR-grade product is specifically intended for laboratory use. Food applications require certified food-grade sodium nitrite with appropriate regulatory approvals.
3. What safety precautions should be taken when handling sodium nitrite?
Always wear appropriate PPE including gloves, goggles, and lab coat when handling. Work in a well-ventilated area or fume hood, as sodium nitrite can release toxic nitrogen oxides when heated or in contact with acids.
4. How does the LR grade differ from AR or ACS grades?
LR grade (Laboratory Reagent) offers high purity suitable for most general laboratory applications, while AR (Analytical Reagent) and ACS (American Chemical Society) grades have stricter purity requirements for quantitative analysis and official methods.
5. What is the typical solubility of sodium nitrite in water?
Sodium nitrite exhibits excellent water solubility, with approximately 82 grams dissolving in 100 mL of water at 20°C. The solubility increases with temperature, reaching about 160 g/100 mL at 100°C.
