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Name :Sorbic acid

Synonyms:1,3-Pentadiene-1-carboxylic acid; Hexa-2,4-dienoic acid; 2,4-Hexadienoic acid

Molecular Structure:

Molecular Formula:C6H8O2

Molecular Weight:112.13

CAS Number:110-44-1


Sorbic acid,or 2,4-hexadienoic acid, is a natural organic compound used as a food preservative. It has the chemical formula C6H8O2. It was first isolated from the unripe berris of the Rowan(Sorbus aucuparia), hence its name.

Sorbic acid and its mineral salts,such as sodium sorbate, potassium sorbate and calcium sorbate, are antimicrobial agents often used as preservatives in food and drinks to prevent the growth of mold, yeast and fungi. In general the salts are preferred over the acid form because they are more soluble in water. The optimal pH for the antimicrobial activity is below pH 6.5 and sorbates are generally used at concentrations of 0.025% to 0.10%. Adding sorbate salts to food will however raise the PH of the food slightly so the PH may need to be a djusted to assure safety.

Sorbic acid is also used as a bio descaling agent.

Sorbic acid should not be confused with other chemically unrelated, but similarly named food additive sorbitol,polysorbate,and ascorbic acid (Vitamin C).

Product name

Sobic Acid

Item Specification
Appearance White crystalline powder
Identification Should conform to standard
Assay (on dry basis) 99.0-101.0%
Moisture 0.5% Max.
Arsenic (as As) 2 ppm Max.
Residue on ignition 0.2% Max.
Melting range 132-135℃
Heavy metals (as Pb) 10 ppm Max.
Clarity Conform

Packaging: 1)25kg or 50kg (net weight)carton lined with plastic bag; (2)30kg(net weight)fiber  Drum lined with plastics bag; (3) 25kg(net weight)woven bag or kraft paper bag lined with Plastics bag.

Storage: Keep in cool, dry and ventilating place. shipped as nondangerous goods

Shelf life:Two years in normal atmospherei



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