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Potassium Sorbate

Chemical Formula: C6H7KO2
Molecular Weight: 150.22
CAS No.​: 24634-61-5
EINECS No.​: 246-376-1

 

Introduction

Potassium Sorbate (Spherical), the potassium salt of sorbic acid, is a highly effective and safe food preservative recommended by FAO and WHO. This white spherical powder is odorless or slightly odorous, easily soluble in water and ethanol. It’s rapidly metabolized into carbon dioxide and water in human body with no residual accumulation, exhibiting only half the toxicity of table salt and one-fourth that of sodium benzoate, while providing 7 times stronger preservative effect.

Specifications

ParameterSpecifications
Assay (dry basis) %98.0~102.0
AppearanceWhite spherical particle
Potassium saltsPass test
SolubilityFreely soluble in water, soluble in ethanol
Melting range (°C)132-135
Test for unsaturationPass test (bromine decolorization)
Acidity or alkalinity max %1.0
Aldehydes (as formaldehyde) max %0.1
Lead (as Pb) max mg/kg2
Loss on drying max %1.0

Features and Benefits

Key Advantages

  • Highly effective against molds, yeasts and aerobic bacteria
  • 7 times more effective than sodium benzoate
  • Only 1/2 the toxicity of table salt
  • Rapidly metabolized with no accumulation in human body
  • Excellent solubility in water and ethanol
  • Spherical form for better flowability and handling
  • FAO/WHO recommended safe preservative

Applications

Food Industry

  • Dairy products: Cheese, yogurt and various fermented dairy
  • Bakery products: Bread, cakes and pastries
  • Beverages: Soft drinks, juices and functional drinks
  • Preserved foods: Jams, pickles and sauces
  • Seafood products: Fish products and processed seafood

Other Industries

  • Pharmaceuticals: Medicine stabilizer
  • Cosmetics: Preservative in personal care products
  • Agriculture: Grain preservative and animal feed additive
  • Industrial: Rubber additive and organic synthesis
Usage Tip: For optimal preservation, dissolve in water before adding to food products. Typical usage level is 0.05-0.2% depending on application.

Packaging & Storage

Package: 25kg carton with inner PE bag

Shelf Life: 24 months when properly stored

Storage Conditions:

  • Store in dry, well-ventilated place
  • Keep away from direct sunlight and moisture
  • Reseal tightly after each use to prevent oxidation
  • Store separately from toxic or hazardous chemicals