Potassium Sorbate

CAS No.:24634-61-5
E No.:E202
Einecs No.:246-376-1
HS Code:916190090
Molecular Formula:C6H7KO2
Molecular Weight:150.218 g/mol

Potassium Sorbate Description

Potassium sorbate is the potassium salt of sorbic acid, with the molecular formula C6H7O2K. It is a white to light yellow granular powder that is soluble in water, propylene glycol and ethanol. It acts as a preservative by combining with the foaming base that enhances the enzyme system, disrupting its action and inhibiting the growth of mold, aerobic bacteria and yeast.

The Food and Agriculture Organization of the United Nations recommends potassium sorbate as a safe and efficient preservative in a variety of products, including carbonated drinks, juices, alcohol, candies, candy products, aquatic products, meat products, cosmetics, skin care products, etc. The packaging is 25 kg/box or 25 kg/bag to meet the requirements of different customers.

Potassium Sorbate Product Data

Name of indexSpecifications
AppearanceWhite granular or powder
Melting range133-135℃
Content99.0% – 101.0%
Loss on drying(105℃,3h)Max 1%
Heat stabilityHeat at 105℃ for 90 minutes without any change in color
Acidity(as C6H8O2)Max 1%
Alkalinity(as K2CO3)Max 1%
Chloride(as Cl)Max 0.018%
Aldehydes(as formaldehyde)Max 0.1%
Sulphate(as SO4)Max 0.038%
Lead(Pb)Max 5 mg/kg
Arsenic(As)Max 3 mg/kg
Mercury (Hg)Max 1 mg/kg
Heavy metals(as Pb)Max 10 mg/kg
Ph(5% water solution
Potassium testPasses test
Double bond testPasses test


Preservative potassium sorbate  can be used in Food, Beverage, Pharmaceutical, Health & Personal care products, Agriculture/Animal Feed/Poultry. Potassium sorbate  is used to inhibit molds and yeasts in many food application, such as in cheese, wine, yogurt, dried meats, apple cider, soft drinks, fruit drinks, and baked goods.

Potassium Sorbate and Sodium Benzoate

The antiseptic effect of potassium sorbate is 5-10 times that of sodium benzoate, but the toxicity is 1/40 of sodium benzoate. Therefore, it is recognized as a low-toxic, safe and efficient food preservative. Furthermore, potassium sorbate remains effective in current pH ranges (e.g. pH 6.5), while sodium benzoate almost loses its antibacterial activity and is only effective below pH 4.5.

Protection principle

Preservative principle: Sorbic acid combines with thiols in the microbial mold system to destroy many important enzymes of microorganisms, thereby inhibiting the growth of microorganisms. In addition, it can also disrupt transfer techniques such as the transfer of cytochrome to oxygen and energy transfer on the cell membrane surface, thereby achieving the purpose of blocking and disinfecting.

Our Service

1.Before Shipment, free sample for test.
2.Packing as your request, with photo before shipment.
3.Cargoes photo before and after loading into container
4.Fast shipment by reputed shiping line.
5.Best service after shipment with emails.


1. What kinds of payment terms can you accept?
The most commonly used payment terms are T/T, L/C, Paypal, Western union, etc.
2. What’s your delivery time?
Generally, it will take 7 to 15 days after receiving the deposit or confirmed LC.
3. How about the packing?
Neutral packing , we also accept customized pack.
4. What is the Min Order Quantity?
Different products have different MOQ. We can provide 50g-100g samples, we also support 1 packing for your test.
5. How about the validity of quotation?
In normal , the validity can keep five working days, but when market changes fast, the validity will be short accordingly.
6.How to place an order?

Firstly we need to confirmed the product, price, quality and the payment terms;Then we will send you the pro formal invoice, with this you will send us the Purchase order or draft LC;After we received the deposit or confirmed LC,we started the preparation of the order.