Appearance

white to grey white powder

BaO2

≥90.0%

Hydrochloric acid insolubles

≤0.3%

Fe

≤0.01%

SiO2

≤0.15%

Heavy metal(Pb)

≤0.001%

Chloride

≤0.01%

Other barium salt

≤8.0%

Calcium and alkali metal

≤0.5%

Water

≤0.5%

N

≤0.002%