introduction of Barium peroxide

assay  : ≥95% peroxide (as BaO2) basis
form   :powder
impurities   :≤0.01% heavy metals (as Pb)
  ≤0.5% insoluble in HCl
  ≤1% substances not precipitated by H2SO4 (as SO4)
loss   :≤1% loss on drying, 105 °C
anion traces  : chloride (Cl-): ≤100 mg/kg
Barium peroxide is the inorganic compound with the formula BaO2. This white solid (gray when impure) is one of the most common inorganic peroxides, and it was the first peroxide compound discovered. Being an oxidizer and giving a vivid green colour upon ignition (as do all barium compounds), it finds some use in fireworks; historically, it was also used as a precursor for hydrogen peroxide.

from:Rare Metals