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Related to sodium peroxide: selenium tetrabromide
A yellowish-white powder, Na2O2, used industrially as an oxidizing and bleaching agent and medically as a germicide, antiseptic, and disinfectant.
(Elements & Compounds) a yellowish-white odourless soluble powder formed when sodium reacts with an excess of oxygen: used as an oxidizing agent in chemical preparations, a bleaching agent, an antiseptic, and in removing carbon dioxide from air in submarines, etc. Formula: Na2O2