Specifications

Sorbic Acid, is a natural organic compound used as a food preservative.

quality standard of potassium sorbate
item	standard
appearance	white crystalline powder
identification	conforms
heat stability	not change in color after heating for 90 minutes at 105
odor	slight characteristic odor
purity	99.0-101.0%
water	≤ 0.5%
melting  range(°C)	132-135
residue on ignition	≤ 0.2%
aldehydes (as formaldehyde)	0.1%max
lead (pd)	≤ 5mg/kg
arsenic (as)	≤ 2mg/kg
mercury (hg)	≤ 1mg/kg
heavy metals ( as pb)	≤ 10mg/kg