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barium peroxide

noun, Chemistry.
1.
a grayish-white, water-insoluble, poisonous powder, BaO 2 , used chiefly in the manufacture of hydrogen peroxide and as a bleaching agent for textiles.
Also called barium dioxide.
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Based on the Random House Dictionary, © Random House, Inc. 2018.
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  • The rear chamber of the bullet held a cup containing the mixture of barium peroxide and magnesium.

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