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  2. Barium peroxide - Wikipedia

    en.wikipedia.org/wiki/Barium_peroxide

    This reaction is the basis for the now-obsolete Brin process for separating oxygen from the atmosphere. Other oxides, e.g. Na 2 O and SrO, behave similarly. [4] In another obsolete application, barium peroxide was once used to produce hydrogen peroxide via its reaction with sulfuric acid: [3] BaO 2 + H 2 SO 4 → H 2 O 2 + BaSO 4. The insoluble ...

  3. Brin process - Wikipedia

    en.wikipedia.org/wiki/Brin_process

    In this process barium oxide reacts at 500–600 °C with air to form barium peroxide which decomposes at above 800 °C by releasing oxygen. 2 BaO + O 2 ⇌ 2 BaO 2 The reaction was discovered by Joseph-Louis Gay-Lussac and Louis-Jacques Thenard in 1811 and Jean-Baptiste Boussingault tried to use this reaction to establish a process to produce ...

  4. Metal peroxide - Wikipedia

    en.wikipedia.org/wiki/Metal_peroxide

    Barium peroxide was once used to produce pure oxygen from air. This process relies on the temperature-dependent chemical equilibrium between barium oxide and peroxide: the reaction of barium oxide with air at 500 °C results in barium peroxide, which upon heating to above 700 °C decomposes back to barium oxide with release pure oxygen. [3]

  5. Chemical oxygen generator - Wikipedia

    en.wikipedia.org/wiki/Chemical_oxygen_generator

    The oxidizer core is sodium chlorate (Na Cl O 3), which is mixed with less than 5 percent barium peroxide (Ba O 2) and less than 1 percent potassium perchlorate (K Cl O 4). The explosives in the percussion cap are a lead styphnate and tetrazene explosive mixture. The chemical reaction is exothermic and the exterior temperature of the generator ...

  6. Barium oxide - Wikipedia

    en.wikipedia.org/wiki/Barium_oxide

    Barium oxide peroxidation from oxygen uptake, adapted from Middleburgh et al, 2012. [ 4 ] Calculations using Density Functional Theory (DFT) suggest that the oxygen incorporation reaction is exothermic, and that the most energetically favoured occupation site is indeed the peroxide ion at the oxide lattice — other than interstitial positions ...

  7. Barium - Wikipedia

    en.wikipedia.org/wiki/Barium

    Barium, typically as barium nitrate imparts a yellow or "apple" green color to fireworks; [30] for brilliant green barium chloride is used. Barium peroxide is a catalyst in the aluminothermic reaction ( thermite ) for welding rail tracks.

  8. Trump wants to deport immigrants with criminal records. They ...

    www.aol.com/trump-wants-deport-criminals-theyre...

    President-elect Donald Trump has promised to target immigrants with criminal records as he launches a "mass deportation" to remove millions of people from the country.

  9. Pyrotechnic composition - Wikipedia

    en.wikipedia.org/wiki/Pyrotechnic_composition

    A pyrotechnic composition is a substance or mixture of substances designed to produce an effect by heat, light, sound, gas/smoke or a combination of these, as a result of non-detonative self-sustaining exothermic chemical reactions. Pyrotechnic substances do not rely on oxygen from external sources to sustain the reaction.