Chemicals - Potassium Sorbate


Shangdong Kunda Biotechnology Co. Ltd




25 KG Bag

Grade Standard

Food Tech

General Description

Potassium sorbate is a food preservative that is widely used to inhibit the growth of microorganisms and prevent spoilage in various food and beverage products. It is the potassium salt of sorbic acid, a naturally occurring organic compound.


1. Food Preservation:

Potassium sorbate is often used in processed foods, such as baked goods, dairy products, sauces, dressings, and beverages, to inhibit the growth of microorganisms and prevent spoilage.

2. Wine and Beer:

It is commonly used in winemaking and brewing to prevent the growth of yeast and mold, ensuring the stability and freshness of the final product.

3. Fruit and Vegetable Products:

Potassium sorbate can be found in various fruit and vegetable products, including jams, jellies, fruit juices, and dried fruits, to maintain their quality and inhibit microbial growth.

4. Cheese and Dairy Products:

It is used in cheese manufacturing to prevent the growth of yeasts and molds, which can cause spoilage and affect product quality.

5. Salad Dressings and Sauces:

Potassium sorbate is added to salad dressings, sauces, and condiments to prevent spoilage and maintain product freshness.

6. Soft Drinks and Carbonated Beverages:

It is used as a preservative in carbonated drinks and soft drinks to inhibit the growth of yeasts, molds, and bacteria.

7. Cosmetics and Personal Care Products:

Potassium sorbate can be found in various cosmetic and personal care products, such as creams, lotions, shampoos, and liquid soaps, to prevent the growth of microorganisms and increase product shelf life.


Item Specification
Appearance White or off white granular
Odor Slight characteristic odor
Solubility Freely soluble in water and practically insoluble in ether
Heat stability No change in color after heating for 90 minutes at 105℃
Identification test (1) Potassium test: Passes Test
Identification test (2) Test of double bonds: Passes Test
Identification test (3) UV: conforms with standard spectrum
Identification test (4) Melting point: 133.0~135.0℃
Assay (dry weight basis%) 99~101.0
PH-Value (10% water solution) 8.5-10.5
Transmittance (%) >90.0
Clarify Passes Test
Alkalinity (as K2CO3) (%) ≤1
Chloride (as Cl) (%) ≤0.018
Sulfate (as SO4) (%) ≤0.038
Loss On Drying (%) ≤1.0
Aldehydes (as formaldehyde) (%) ≤0.1
Arsenic (as As) (mg/kg) ≤3
Lead (mg/kg) ≤2
Zinc (mg/kg) ≤0.1
Cadmium (mg/kg) ≤0.02
Mercury (mg/kg) ≤1
Heavy Metals (as Pb) (mg/kg) ≤10
Total Count Colony (cfu/g) ≤100

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