Appearance

white crystalline powder

Identifications

Positive

PH Value

6.0-7.5

Heavy metals

≤ 20ppm

Loss On drying

13.5-15.5%

Sulfate

≤ 0.1%

Related substances

≤ 0.6%

Color of solution

not more colored than reference GY5

Clarity of solution

Clear

Alkaline or acid of activated impurities

complies

Assay of magnesium

3.15-3.30%

Assay (calculated on the dried basis)

98.5-101.0%