Parameter | Specification | References |
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Chemical Name | Potassium (E,E)-hexa-2,4-dienoate | 14 |
CAS No. | 24634-61-5 | 12 |
Molecular Formula | C₆H₇KO₂ | 12 |
Molecular Weight | 150.22 g/mol | 24 |
Purity | ≥98% (Analytical Reagent Grade); 99% (Food/Pharmaceutical Grade) | 25 |
Appearance | White crystalline powder or crystals (may oxidize/discolor in air) | 24 |
Solubility | ● Water: 58.2% (20°C) ● Ethanol: 6.5% ● Propylene Glycol: 5.8% | 24 |
Melting Point | >270°C (decomposition) | 12 |
Density | 1.361 g/cm³ | 15 |
Storage | Airtight container, protected from light and moisture | 25 |
Applications | ● Food preservative (E202) ● Cosmetic formulations ● Pharmaceuticals |
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Potassium sorbate can effectively inhibit the growth and reproduction of various microorganisms (such as Staphylococcus, Salmonella, etc.), thus playing a role in preservation and freshness preservation. In cosmetics, adding an appropriate amount of potassium sorbate can reduce the contamination of harmful microorganisms such as bacteria and fungi to the product, extend the shelf life of cosmetics, and ensure the safety and stability of the product.