Potassium sorbate is the potassium salt of sorbic acid, chemical formula CH3CH=CH−CH=CH−CO2K. It is a white salt that is very soluble in water (58.2% at 20 °C). It is primarily used as a food preservative (E number 202).
I. Specification
No. | Items of Inspection | FCC | Analysis Result | |
1 | IDENTIFICATION | Conform Standard | Conform Standard | |
2 | APPEARANCE | White Granule or Powder | White Granule or Powder | |
3 | MELTING POINT (AS SORBIC ACID) | 133.0ºC-135ºC | 133.0ºC-135ºC | |
4 | ASSAY | 99.0%-101.0% | 100.20% | |
5 | ACIDITY | ≤1% | <1% | |
6 | ALKALINITY | ≤1% | <1% | |
7 | ALDEHYDES | ≤0.1% | <0.1% | |
8 | HEAVY METALS (as Pb) | ≤10PPM | <10PPM | |
9 | ARSENIC(as As) | ≤3PPM | <3PPM | |
10 | LOSS ON DRYING | ≤1% | 0.40% | |
11 | MERCURY | ≤1PPM | <1PPM | |
12 | LEAD | ≤2PPM | <2PPM | |
13 | Conclusion | In compliance with the standard of FCCV/E202 |
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