ITEM 

STANDARD

RESULTS

APPEARANCE

WHITISH, SMALL CRYSTALS

WHITISH, SMALL CRYSTALS

AROMA

NONE

NONE

FLAVOR

SLIGHTLY SALTY

SLIGHTLY SALTY

CONTENT

≥99.0%

99.65%

CHLORIDE

≤0.04%

≤0.04%

LOSS ON DRYING

≤0.3%

0.22%

SULPHATE

≤0.05%

≤0.05%

TRANSMITTANCE

≥98.0%

98.7%

SPECIFIC ROTATION[]D20°C

(10% SOLUTION)

+24.9°---+25.3°

+25.08°

SALT

≤0.4%

≤0.4%

HEAVY METALS

≤10PPM

≤10PPM

ARSENIC (As)

≤1.5PPM

≤1.5PPM

LEAD(Pb)

≤1PPM

≤1PPM

Cd

≤1PPM

≤1PPM

Cu

≤1PPM

≤1PPM

Hg

≤1PPM

≤1PPM

PH

6.7-7.2

7.1

PYRROLIDONCARBOXYL ACID

≤0.2%

≤0.2%

IDENTIFICATION

FCCVI

CONFIRM