ITEM

STANDARD

DESCRIPTION

WHITE CRYSTAL OR GRANULAR POWDER

IDENTIFICATION

MEETS THE REQUIRMENTS

ORGANIC VOLATILE IMPURITIES

MEETS THE REQUIRMENTS

REDUCING SUBSTANCES

≤1.0%

LOSS ON DRYING

≤2.0%

CHLORIDE

≤0.07%

SULFATE

≤0.05%

ASSAY

98.5%-102.0%

HEAVY METALS

≤0.002%

ARSENIC

≤3PPM