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  2. Oxychlorination - Wikipedia

    en.wikipedia.org/wiki/Oxychlorination

    ClCH 2 CH 2 Cl CH 2 =CHCl + HCl. The HCl from this cracking process is recycled by oxychlorination in order to reduce the consumption of raw material HCl (or Cl 2, if direct chlorination of ethylene is chosen as main way to produce 1,2-dichloroethane). [3] Iron(III) chloride is produced commercially by oxychlorination (and other methods).

  3. Sodium-vapor lamp - Wikipedia

    en.wikipedia.org/wiki/Sodium-vapor_lamp

    A high-pressure sodium street light in Toronto A high-pressure sodium-vapor lamp An HPS lamp that isn't entirely off. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. Two varieties of such lamps exist: low pressure, and high pressure.

  4. Hollow-cathode lamp - Wikipedia

    en.wikipedia.org/wiki/Hollow-cathode_lamp

    An HCL can also be used to tune light sources to a specific atomic transition by making use of the optogalvanic effect, which is a result of direct or indirect photoionization. By shining the light source into the HCL, one can excite or even eject electrons (directly photoionize) from the atoms inside the lamp, so long as the light source ...

  5. Hydrogen chloride - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_chloride

    Cl 2 + H 2 2 HCl. As the reaction is exothermic, the installation is called an HCl oven or HCl burner. The resulting hydrogen chloride gas is absorbed in deionized water, resulting in chemically pure hydrochloric acid. This reaction can give a very pure product, e.g. for use in the food industry. The reaction can also be triggered by blue ...

  6. Basic oxide - Wikipedia

    en.wikipedia.org/wiki/Basic_oxide

    An oxide is a chemical compound in which one or more oxygen atoms combined with another element, such as H 2 O or CO 2.Based on their acid-base characteristics, oxides can be classified into four categories: acidic oxides, basic oxides, and amphoteric oxides and neutral oxides.

  7. Stoichiometry - Wikipedia

    en.wikipedia.org/wiki/Stoichiometry

    2 FeCl 3 + 3 H 2 S Fe 2 S 3 + 6 HCl. The stoichiometric masses for this reaction are: 324.41 g FeCl 3, 102.25 g H 2 S, 207.89 g Fe 2 S 3, 218.77 g HCl. Suppose 90.0 g of FeCl 3 reacts with 52.0 g of H 2 S. To find the limiting reagent and the mass of HCl produced by the reaction, we change the above amounts by a factor of 90/324.41 and ...

  8. Sodium oxide - Wikipedia

    en.wikipedia.org/wiki/Sodium_oxide

    5 NaN 3 + NaNO 3 3 Na 2 O + 8 N 2. Burning sodium in air produces a mixture of Na 2 O and sodium peroxide (Na 2 O 2). A third much less known method involves heating sodium metal with iron(III) oxide (rust): 6 Na + Fe 2 O 3 3 Na 2 O + 2 Fe. the reaction should be done in an inert atmosphere to avoid the reaction of sodium with the air ...

  9. Chemical reaction - Wikipedia

    en.wikipedia.org/wiki/Chemical_reaction

    In a combustion reaction, an element or compound reacts with an oxidant, usually oxygen, often producing energy in the form of heat or light. Combustion reactions frequently involve a hydrocarbon . For instance, the combustion of 1 mole (114 g) of octane in oxygen C 8 H 18 ( l ) + 25 2 O 2 ( g ) 8 CO 2 + 9 H 2 O ( l ) {\displaystyle {\ce {C8H18 ...