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  2. Sabatier reaction - Wikipedia

    en.wikipedia.org/wiki/Sabatier_reaction

    Paul Sabatier (1854-1941) winner of the Nobel Prize in Chemistry in 1912 and discoverer of the reaction in 1897. The Sabatier reaction or Sabatier process produces methane and water from a reaction of hydrogen with carbon dioxide at elevated temperatures (optimally 300–400 °C) and pressures (perhaps 3 MPa [1]) in the presence of a nickel catalyst.

  3. Potassium oxide - Wikipedia

    en.wikipedia.org/wiki/Potassium_oxide

    Other possibility is to heat potassium peroxide at 500 °C which decomposes at that temperature giving pure potassium oxide and oxygen. + Potassium hydroxide cannot be further dehydrated to the oxide but it can react with molten potassium to produce it, releasing hydrogen as a byproduct.

  4. Potassium - Wikipedia

    en.wikipedia.org/wiki/Potassium

    Potassium reacts with oxygen, water, and carbon dioxide components in air. With oxygen it forms potassium peroxide. With water potassium forms potassium hydroxide (KOH). The reaction of potassium with water can be violently exothermic, especially since the coproduced hydrogen gas can ignite.

  5. Potassium superoxide - Wikipedia

    en.wikipedia.org/wiki/Potassium_superoxide

    Potassium superoxide is a source of superoxide, which is an oxidant and a nucleophile, depending on its reaction partner. [8] Upon contact with water, it undergoes disproportionation to potassium hydroxide, oxygen, and hydrogen peroxide: 4 KO 2 + 2 H 2 O → 4 KOH + 3 O 2 2 KO 2 + 2 H 2 O → 2 KOH + H 2 O 2 + O 2 [9] It reacts with carbon ...

  6. Bicarbonate buffer system - Wikipedia

    en.wikipedia.org/wiki/Bicarbonate_buffer_system

    3), and carbon dioxide (CO 2) in order to maintain pH in the blood and duodenum, among other tissues, to support proper metabolic function. [1] Catalyzed by carbonic anhydrase, carbon dioxide (CO 2) reacts with water (H 2 O) to form carbonic acid (H 2 CO 3), which in turn rapidly dissociates to form a bicarbonate ion (HCO −

  7. Potassium peroxide - Wikipedia

    en.wikipedia.org/wiki/Potassium_peroxide

    Potassium peroxide is an inorganic compound with the molecular formula K 2 O 2. It is formed as potassium reacts with oxygen in the air, along with potassium oxide (K 2 O) and potassium superoxide (KO 2). Crystal structure. Potassium peroxide reacts with water to form potassium hydroxide and oxygen: 2 K 2 O 2 + 2 H 2 O → 4 KOH + O 2 ↑

  8. Electrolysis of water - Wikipedia

    en.wikipedia.org/wiki/Electrolysis_of_water

    Most of the time, hydrogen is made by splitting methane (CH 4) into carbon dioxide (CO 2) and hydrogen (H 2) via steam reforming. This is a carbon-intensive process that means for every kilogram of “grey” hydrogen produced, approximately 10 kilograms of CO 2 are emitted into the atmosphere.

  9. Water-reactive substances - Wikipedia

    en.wikipedia.org/wiki/Water-reactive_substances

    Magnesium has a mild reaction with cold water. The reaction is short-lived because the magnesium hydroxide layer formed on the magnesium is almost insoluble in water and prevents further reaction. Mg(s) + 2H 2 O(l) Mg(OH) 2 (s) + H 2 (g) [11] A metal reacting with cold water will produce a metal hydroxide and hydrogen gas.