ITEM

STANDARD

APPEARANCE

Whitish,small crystals

AROMA

None

FLAVOR

Slightly Sslty

CONTENT

≥99.0%

CHLORIDE

≤0.04%

LOSS ON DRYING

≤0.3%

SULPHATE

≤0.05%

TRANSMITTANCE

≥98.0%

SPECIFIC ROTATIOM[a]D20%

+24.90-+25.30

IRON

≤5PPM

HEAVY METALS (AS Pb)

≤10PPM

ARSENIC(As)

≤1.5PPM

PH

6.7-7.2

PYRROLIDONCARBOXYL ACID

≤0.2%

LEAD(Pb)

≤1PPM