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  2. Ammonia solution - Wikipedia

    en.wikipedia.org/wiki/Ammonia_solution

    In aqueous solution, ammonia deprotonates a small fraction of the water to give ammonium and hydroxide according to the following equilibrium: . NH 3 + H 2 O ⇌ NH + 4 + OH −.. In a 1 M ammonia solution, about 0.42% of the ammonia is converted to ammonium, equivalent to pH = 11.63 because [NH +

  3. Ammonolysis - Wikipedia

    en.wikipedia.org/wiki/Ammonolysis

    In chemistry, ammonolysis (/am·mo·nol·y·sis/) is the process of splitting ammonia into + +. [1] Ammonolysis reactions can be conducted with organic compounds to produce amines (molecules containing a nitrogen atom with a lone pair, :N), [2] or with inorganic compounds to produce nitrides.

  4. Haber process - Wikipedia

    en.wikipedia.org/wiki/Haber_process

    The steam reforming, shift conversion, carbon dioxide removal, and methanation steps each operate at absolute pressures of about 25 to 35 bar, while the ammonia synthesis loop operates at temperatures of 300–500 °C (572–932 °F) and pressures ranging from 60 to 180 bar depending upon the method used. The resulting ammonia must then be ...

  5. Ammonia (data page) - Wikipedia

    en.wikipedia.org/wiki/Ammonia_(data_page)

    Uses formula shown below. ... A = 6.67956, B = 1002.711, C = 25.215 for T = 190 K through 333 K. Vapor over anhydrous ... The third column is the density of the ...

  6. Ammonia - Wikipedia

    en.wikipedia.org/wiki/Ammonia

    The rate constant, k, of this reaction depends on the temperature of the environment, with a value of at 10 K. [179] The rate constant was calculated from the formula ⁠ = (/) ⁠. For the primary formation reaction, a = 1.05 × 10 −6 and B = −0.47.

  7. Ammonium carbamate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_carbamate

    Ammonium carbamate can be prepared by reaction of the two gases at high temperature (175–225 °C) and high pressure (150–250 bar). [14] It can also be obtained by bubbling gaseous CO 2 and NH 3 in anhydrous ethanol, 1-propanol, or DMF at ambient pressure and 0 °C. The carbamate precipitates and can be separated by simple filtration, and ...

  8. Thermochemical equation - Wikipedia

    en.wikipedia.org/wiki/Thermochemical_equation

    In thermochemistry, a thermochemical equation is a balanced chemical equation that represents the energy changes from a system to its surroundings. One such equation involves the enthalpy change, which is denoted with Δ H {\displaystyle \Delta H} In variable form, a thermochemical equation would appear similar to the following:

  9. Ammonium - Wikipedia

    en.wikipedia.org/wiki/Ammonium

    [NH 4] + + B − → HB + NH 3. Thus, the treatment of concentrated solutions of ammonium salts with a strong base gives ammonia. When ammonia is dissolved in water, a tiny amount of it converts to ammonium ions: H 2 O + NH 3 ⇌ OH − + [NH 4] + The degree to which ammonia forms the ammonium ion depends on the pH of the solution. If the pH is ...