Description
Specifications Table
Product Name – Potassium sorbate LR
Quantity/Pack Size – 1 kg
Form – Powder
Grade – LR (Laboratory Reagent)
Application – Food preservative, antifungal agent, research applications
Product Overview
Potassium sorbate LR is a highly effective, water-soluble preservative widely recognized for its ability to inhibit mold, yeast, and fungal growth. This laboratory reagent grade compound is synthesized through the neutralization of sorbic acid with potassium hydroxide, ensuring high purity and consistency. Its chemical stability and non-toxic nature make it a preferred choice for applications requiring controlled microbial inhibition without altering the organoleptic properties of the end product. The LR grade designation guarantees that this potassium sorbate meets stringent quality standards, making it suitable for precise laboratory experiments, research, and development. As a broad-spectrum preservative, it functions optimally in slightly acidic environments (pH 6.5 or lower), where it dissociates into sorbic acid, the active antimicrobial form. The fine, free-flowing powder form ensures easy dissolution and uniform distribution in aqueous solutions. Whether used in microbial studies, formulation development, or as a reference standard, this potassium sorbate LR delivers reliable performance with minimal residue, adhering to global safety and regulatory benchmarks for laboratory chemicals.
FAQs
1. What is the solubility of potassium sorbate LR in water?
Potassium sorbate LR is highly soluble in water, with a solubility of approximately 58.2 g/100 mL at 20°C, forming a clear, colorless solution.
2. Can this grade be used for microbial culture media preparation?
Yes, the LR grade is suitable for microbial culture media as it meets the purity requirements for laboratory applications, though dosage adjustments may be needed based on specific protocols.
3. How does potassium sorbate LR compare to sodium sorbate in terms of efficacy?
Potassium sorbate and sodium sorbate are functionally similar, but potassium sorbate is often preferred in applications where sodium content must be minimized, as it dissociates into the same active sorbic acid.
4. What is the recommended storage condition for this product?
Store in a cool, dry place in tightly sealed containers to prevent moisture absorption and degradation. Avoid exposure to direct sunlight or high humidity.
5. Is this product compatible with acidic or alkaline solutions?
It is most effective in acidic conditions (pH ≤ 6.5) where it converts to sorbic acid. In alkaline solutions, its antimicrobial activity significantly reduces due to ionization.
