SPECIFICATION

STANDARD

Identification

Conform To Standard

Appearance

White Granular

Assay

99.0 ~ 101.0%

Free Acid (as SO4)

1% max

Free Alkali (as K2CO3)

1%max

Heavy Metals (as Pb)

 10 Ppm max

Arsenic (as As)

3 Ppm max

Loss On Drying

 1.0% max

Lead

 2Ppm max

Melting Point(As sorbic acid)

133.0°C-135.0°C 

Mercury

1Ppm max

Aldehydes

0.1%max

Organic Volatile Impurities

Meet the requirement

Chloride(as CI)

0.1%max

Residual Organic Solvents

Negative

CONCONCLUSION: The above product is in conformity with FCCIV .