Food Preservative Potassium Sorbate E202

Character:White scaly crystalline, no odor or smell a bit

Chinese name: potassium sorbate
English name: Potassium sorbate
Chinese alias: 2, 4 - adipic acid potassium
CAS no. : 24634-61-5;590-00-1
Molecular formula: C6H7KO2
Molecular weight: 150.2169

Main application:
1. Potassium sorbate is internationally recognized as low toxicity and high efficiency of acid type preservatives, anticorrosive effect and sorbic acid with the same.Use scope and usage (sorbic acid) see mountain pear acid. 
2. Used as a food preservative, fresh-keeping and washing cosmetics and feed preservative, etc. 
3. The cosmetics preservatives.The preservative of organic acids.Adding amount is 0.5% commonly.Can be used mixed with sorbic acid.Potassium sorbate is soluble in water, easy to use, but its 1% aqueous solution ph value of 7 ~ 8, tend to make cosmetics increased ph, when use should be pay attention to

Synthetic method:Join sorbic acid in the reaction kettle, then add the sorbic acid 66% of the water quality, drops under 45 ºC and 49% potassium hydroxide solution, until the reaction liquid PH = 8 for check, reaction takes about 45 min.Add a certain amount of activated carbon, vacuum suction filter, under 40-45 ºC to filtrate vacuum evaporation 3-4 h, meet the requirements after the temperature to 70 ºC feeding.By the centrifugal dehydration crystallization, mother liquor recycling, finally get product drying under 105 ºC.

Other data information:
CAS no. : 24634-61-5;590-00-1
MDL number: MFCD00016546
EINECS no. : 246-376-1
RTECS number: WG2170000
BRN number: 5357554
PubChem number: 24871514