SORBIC ACID, FCCIV
Appearance: white crystalline powder
Assay: 99-101%
Water content: 0.5% max
Melting point: 132-135oC
Residue on ignition: 0.2% max
Heavy metals: 10ppm max
POTASSIUM SORBATE,FCCIV
Appearance: white granular
Assay: 98%-101%
Loss on drying: 1% max
Acidity: about 1%
Alkalinity: about 1%
Arsenic: 3ppm max
Heavy metals