Potassium Sorbate CAS#24634-61-5
Potassium sorbate is a white crystalline powder and the potassium salt of sorbic acid. It was first discovered in the 1850s and originally derived from the Mountain Ash tree. Today, it is produced through synthetic methods.
Potassium sorbate is an effective food preservative with good degradability and properties similar to naturally occurring fatty acids in foods. It is commonly used to inhibit and slow the growth of molds and yeasts in food products.
Potassium sorbate Chemical Properties
| Melting point | 270 °C |
| density | 1,361 g/cm3 |
| vapor pressure | <1 Pa (20 °C) |
| FEMA | 2921 | POTASSIUM SORBATE |
| storage temp. | 2-8°C |
| solubility | H2O: 1 M at 20 °C, clear, colorless to faintly yellow |
| form | Powder |
| pka | 4.69[at 20 ℃] |
| color | White to light cream |
| Odor | Odorless |
| PH Range | 8 - 11 at 580 g/l at 20 °C |
| PH | 7.8 (H2O, 20.1℃) |
| Water Solubility | 58.2 g/100 mL (20 ºC) |
| Merck | 147671 |
| BRN | 5357554 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | CHHHXKFHOYLYRE-STWYSWDKSA-M |
| LogP | -1.72 at 20℃ |
| CAS DataBase Reference | 24634-61-5(CAS DataBase Reference) |
| EPA Substance Registry System | Potassium sorbate (24634-61-5) |
| Hazard Codes | Xi,C,T,F |
| Risk Statements | 36/37/38-35-22 |
| Safety Statements | 26-36-45-36/37/39 |
| WGK Germany | 1 |
| RTECS | WG2170000 |
| Autoignition Temperature | >150 °C |
| TSCA | Yes |
| HS Code | 2916 19 95 |
| Toxicity | LD50 orally in Rabbit: 3800 mg/kg |
Product Usage of Potassium Sorbate CAS#24634-61-5
When dissolved in water, potassium sorbate ionizes to form sorbic acid, which is effective against yeasts, molds, and certain bacteria. It is widely applied at levels of 250 ppm to 1000 ppm in a variety of food products, including cheese, dips, yogurt, sour cream, bread, cakes, pies and fillings, baking mixes, doughs, icings, fudges, toppings, beverages, margarine, salads, fermented and acidified vegetables, olives, fruit products, dressings, smoked and salted fish, confections, and mayonnaise.
Therefore, potassium sorbate is commonly used as an effective and powerful food preservative.
