INDEX

SPECIFICATION

RESULTS

Appearance

White or nearly white powder

Conforms

Purity

98%- 100.5%

99.9%

Water

8.5%- 10.0%

8.7%

Chloride (as Cl)

≤ 0.011%

<0.011%

Alkalinity (%)

Qualified

Qualified

Lead (Pb)

≤2 mg/kg

<2 mg/kg

Arsenic (As)

≤3 mg/kg

<3 mg/kg

Mercury (Hg)

≤1 mg/kg

<1 mg/kg

Cadmium (Cd)

≤1 mg/kg

<1 mg/kg

Total heavy metals (as Pb)

<10 mg/kg

<10 mg/kg