Food Preservative Sorbic acid potassium salt Potassium Sorbate

Specification

Standard

Test result

Identification

UV-Maximum254±2mm

Complied

Appearance

White or off white spherical

White spherical

Assay (dry basis)

99.0%-101.0%

100.0%

Melting range

133-135℃

133.2-134.6℃

Loss on drying

Not more than1%

0.20%

PH-Value

8.5-10.5(10% water solution)

9.6

Alkalinity (as K2CO3)

Passes test (about 1%)

Complied

Acidity (as sorbic acid)

Passes test (about 1%)

Complied

Heavy metals (as Pb)

Not more than 0.001%

Complied

Arsenic

Not more than 2ppm

Not more than 2ppm

Lead

Not more than 2ppm

Not more than 2ppm

Sulfate (as SO4) %

Not more than 380ppm

Not more than 380ppm

Aldehydes (as for maldehyde)

Not more than 0.1%

Complied

Heat resistance

No discoloration after heating

90 minutes at 105℃

Complied