Potassium sorbate
CAS Number: 24634-61-5
Chemical Formula: C6H7KO2
Synonyms:
SORBIC ACID POTASSIUM SALT
(E,E)-4-Hexadienoic acid potassium salt
Potassium (E,E)-hexa-2,4-dienoate
Appearance: White crystalline powder
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Potassium sorbate appears as a white crystalline powder, which is the potassium salt derived from sorbic acid. It was first discovered in mountain ash trees during the 1850s, while modern industrial production mainly adopts synthetic processes. As a highly efficient food preservative, it is completely biodegradable and has a molecular structure similar to natural fatty acids found in many daily foods. It inhibits the growth and reproduction of mold and yeast effectively, and is extensively used in margarine, wine, cheese, yogurt, soft drinks, baked foods and other products. Supported by numerous long-term safety studies, it has a reliable safety profile and is regarded as a safe food additive by relevant professional institutions.
Parameters
| Item | Value |
| Melting point | 270 °C |
| Density | 1.361 g/cm³ |
| Vapor pressure | <1 Pa (20 °C) |
| FEMA | 2921 POTASSIUM SORBATE |
| Storage temperature | 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 | 7.8 (H₂O, 20.1℃) |
| pH Range | 8–11 at 580 g/L at 20 °C |
| Water Solubility | 58.2 g/100 mL (20 ºC) |
| Merck | 14, 7671 |
| BRN | 5357554 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application | cleaning products cosmetics food and beverages personal care |
| Cosmetics Ingredients Functions | FRAGRANCE PRESERVATIVE |
| InChI | 1S/C6H8O2.K/c1-2-3-4-5-6(7)8;/h2-5H,1H3,(H,7,8);/q;+1/p-1/b3-2+,5-4+; |
| InChIKey | CHHHXKFHOYLYRE-STWYSWDKSA-M |
| SMILES | [K+].C\C=C\C=C\C([O-])=O |
| LogP | -1.72 at 20℃ |
| CAS DataBase Reference | 24634-61-5 (CAS DataBase Reference) |
| EPA Substance Registry System | Potassium sorbate (24634-61-5) |
Safety Information
| Item | Value |
| 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 | TSCA listed |
| HS Code | 2916 19 95 |
| Storage Class | 11 Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 |
| Toxicity | LD50 orally in Rabbit: 3800 mg/kg |
Product Application
Potassium sorbate CAS#24634-61-5
When dissolved in water, potassium sorbate ionizes to release sorbic acid, the active component that suppresses yeast, mold and certain bacteria. It is commonly used at concentrations ranging from 250 ppm to 1000 ppm in cheese, dips, yogurt, sour cream, bread, cakes, pastries and fillings, baking mixes, doughs, icings, fudges, toppings, beverages, margarine, salads, pickled vegetables, olives, fruit products, sauces, smoked and salted fish, confectionery and mayonnaise. Due to its excellent preservative performance, it has become one of the most widely used preservatives in the food industry.
Fast delivery time
Inventory orders: 2–3 working days.
New production orders: 7–10 working days.
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