Description
Specifications Table
Product Name – Potassium metabisulfite LR
Quantity/Pack Size – 500 g
Form – Powder
Grade – LR (Laboratory Reagent)
Application – Oxidation-reduction reactions, food preservation, chemical synthesis
Product Overview
Potassium metabisulfite LR is a high-purity laboratory reagent designed for critical applications requiring precise chemical reactions. This fine, white crystalline powder serves as a reliable source of sulfur dioxide, making it indispensable in oxidation-reduction processes, food preservation, and chemical synthesis. Its LR (Laboratory Reagent) grade ensures low impurity levels, providing consistent and reproducible results in analytical procedures. The compound’s strong reducing properties allow it to act as an effective antioxidant, preventing spoilage and degradation in various formulations. Its solubility in water and stability under controlled conditions make it a versatile choice for laboratory environments. Whether used as a preservative, reducing agent, or reagent in titrations, potassium metabisulfite maintains its efficacy across diverse experimental setups. The 500 g pack size offers an optimal balance between bulk supply and storage convenience, catering to both small-scale research and larger batch preparations. Proper handling and storage in a cool, dry place are recommended to maintain its potency and extend shelf life.
FAQs
1. What is the chemical formula of potassium metabisulfite?
Potassium metabisulfite has the chemical formula K2S2O5, which dissociates in solution to release sulfur dioxide.
2. Is this LR-grade potassium metabisulfite suitable for food-grade applications?
While LR grade is primarily intended for laboratory use, it meets high purity standards. For food-grade applications, verify compliance with relevant regulations.
3. How should potassium metabisulfite be stored to maintain its stability?
Store in a tightly sealed container in a cool, dry place, away from moisture and incompatible substances like strong acids or oxidizing agents.
4. Can this compound be used as a substitute for sodium metabisulfite?
Yes, potassium metabisulfite can often replace sodium metabisulfite, though adjustments may be needed due to differences in molecular weight and solubility.
5. What safety precautions should be taken when handling potassium metabisulfite?
Wear protective gloves, goggles, and a lab coat. Avoid inhalation and direct contact, as it may cause irritation to skin, eyes, and respiratory tract.
