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Potassium Sorbate is a colorless to white crystal or crystalline powder, odorless or slight odor. Instability in the air, easy to absorb. Be oxidized coloring. Hygroscopicity. Soluble in water, ethanol.
Type | Preservatives |
CAS No | 24634-61-5 |
Qty in 20' FCL | 14MT |
Min. Order | 1000KG |
ITEMS | STANDARDs | ||
Appearance | White to off-white granular | ||
Assay | 99.0% - 101.0% | ||
Loss on drying(105℃,3h) | 1% Max | ||
Heat Stability | No change in colour after heating for 90 minutes at 105℃ | ||
Acidity (as C6H8O2) | 1% Max | ||
Alkalinity (as K2CO3) | 1% Max | ||
Chloride (as Cl) | 0.018% Max | ||
Aldehydes (as formaldehyde) | 0.1% Max | ||
Sulfate (as SO4) | 0.038% Max | ||
Lead (Pb) | 5 mg/kg Max | ||
Arsenic (As) | 3 mg/kg Max | ||
Mercury (Hg) | 1 mg/kg Max | ||
Heavy metals (as Pb) | 10 mg/kg Max | ||
Organic Volatile Impurities | Meet the requirements | ||
Residual solvents | Meet the requirements |
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).[4] Potassium sorbate is effective in a variety of applications including food, wine, and personal-care products. While sorbic acid is naturally occurring in some berries, virtually all of the world's production of sorbic acid, from which potassium sorbate is derived, is manufactured synthetically.