EXAMINATION ITEMS

INDEX OF QUALITY

APPEARANCE

WHITE TO OFF-WHITE CRYSTALLINE POWDER

SOLUBILITY

SOLUBLE IN ENTHANOL

VERY SLIGHTLY SOLUBLE IN WATER

IDENTIFICATION

COMPLE WITH THE REFERENCE

WATER CONTENT

2.0%

SULFATE ASH

5.0%

MELTINE PIONT

138.0-148.0

PYRIDINE

500PPM

HEAVY METALS

20PPM

THIAMINE DISULFIDS

1.0%

ASSAY(ON DRY BASIS)

98.5-101.0%

PURITY(HPLC)

98.0%