Product Name | Potassium Sorbate |
CAS No. | 590-00-1/24634-61-5 |
Molecular Formula | C6H7KO2 |
Molecular Weight | 150.22 |
Quality Standard | FCC IX |
Packing | In 25kgs carton |
Shelf Life | 2 years, Keep in cool and dry place |
Item | Specification |
Appearance | White to off- white granular |
Odor | Slight characteristic odor |
Solubility | Freely soluble in water and practically insoluble in ether |
Heat Stability | No change in color after heating for 90 min at 105 ºC |
Identification Test | (1) Potassium test: Passes Test |
(2) Test of double bonds:Passes Test | |
(3) UV: conforms with standard spectrum | |
(4) Melting point:133.0~135.0 ºC | |
Assay(on dry weight basis) | 99%~101.0% |
pH-Value(10% water solution) | 8.5-10.5 |
Transmittance | ≥90.0% |
Clarify | Passes Test |
Organic Volatile Impurities | Meet the requirement |
Acidity(As sorbic acid ) | ≤1% |
Alkalinity(as K2CO3) | ≤1% |
Chloride(as Cl) | ≤0.018% |
Sulfate(as SO4) | ≤0.038% |
Loss On Drying | ≤1.0 % |
Aldehydes(as formaldehyde) | ≤0.1% |
Arsenic (as As) | ≤3mg/kg |
Lead | ≤2mg/kg |
Zinc | ≤0.1mg/kg |
Cadmium | ≤0.02mg/kg |
Mercury | ≤1mg/kg |
Heavy Metals(as Pb) | ≤10mg/kg |
Total Count Colony | ≤100cfu/g |
Mould&Yeast | ≤100cfu/g |
Coliform | ≤30cfu/g |