Potassium sorbate CAS 590-00-1 is the potassium salt of Sorbic Acid, chemical formula C6H7KO2. Its primary use is as a food preservative (E number 202). Potassium sorbate is effective in a variety of applications including food, wine, and personal care products. Potassium sorbate is produced by reacting Sorbic Acid with an equimolar portion of potassium hydroxide. The resulting potassium sorbate may be crystallized from aqueous ethanol.

Potassium sorbate is white powder or granule, freely soluble in water and practically insoluble in ether. Store at room temperature. Melting Point is 270°C.

Specification

Appearance                          White granular

Assay                                   99.0~101.0%

Free acid(as sorbic acid)        <1%

Free Alkali(as K2CO3)           <1%

Arsenic(as As)                       ≤3ppm

Loss on drying                      ≤1.0%

Melting Point(As sorbic acid)   133.0°C-135.0°C

Mercury                               ≤1ppm

Aldehydes                            <0.1%

Chloride(as Cl)                     ≤0.1%

Application

Potassium sorbate is used to inhibit molds and yeasts in many foods, such as cheese, wine, yogurt, dried meats,
apple cider, soft drinks and fruit drinks, and baked goods. It can also be found in the ingredients list of many
dried fruit products. Potassium sorbate is used in food, vegetables in soy, tabacco, drugs, cosmetics, agricultural
products,forage and other domain.It is also used in resins,spices and rubber industries.

Packing
25kg or 50kg/bag/carton/drum

Storage & Transport
Stored in cool and airy place; away from fire and heat; handle with care; no breakage, avoid leakage
This is classified as as a Common Good for transport.