Potassium sorbate CAS NO.24634-61-5

1. PRODUCTION DESCRIPTION: White or off-white granular,slight characteristic odor, freely soluble in water(approx. 1400g/L at 20°C),less solubl…

1. PRODUCTION DESCRIPTION: White or off-white granular,slight characteristic odor, freely soluble in water(approx. 1400g/L at 20°C),less soluble in ethyl alcohol(approx.1g/L at 20°C) and practically insoluble in ether. It decomposes at about 270°C. 2. PHYSICAL ANALYSIS: Purity Index Assay(on dry weight basis)% 99.0%-101.0% of C6H8O2,on dry weight basis Melting range 133-135°C Acidity(as sobic acid) Passes test (about 1%) Heat stability No discoloration after heating 90 minutes at 105°C Free alkalinity(calc. as K2CO3)% Passes test (about 1%) Loss on drying% PH-Value ≤1%(Karl Fischer method,105°C for 3 h) 8.5-10.5(10% water solution) Heavy metals(as lead),% ≤10ppm Lead,% ≤2ppm Mercury ≤1ppm Aldehydes(as formaldehyde)% ≤0.1% Arsenic,ppm ≤2ppm Cadmium ≤0.02ppm Zinc ≤0.1ppm Chloride ≤180ppm Sulfate(as S04)% ≤380ppm Particle Size(As Mesh) 20 Mesh