enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Fétizon oxidation - Wikipedia

    en.wikipedia.org/wiki/Fétizon_oxidation

    Fétizon oxidation is the oxidation of primary and secondary alcohols utilizing the compound silver(I) carbonate absorbed onto the surface of celite also known as Fétizon's reagent first employed by Marcel Fétizon in 1968. [1]

  3. Sodium carbonate - Wikipedia

    en.wikipedia.org/wiki/Sodium_carbonate

    Sodium carbonate is obtained as three hydrates and as the anhydrous salt: sodium carbonate decahydrate , Na 2 CO 3 ·10H 2 O, which readily effloresces to form the monohydrate. sodium carbonate heptahydrate (not known in mineral form), Na 2 CO 3 ·7H 2 O. sodium carbonate monohydrate (thermonatrite), Na 2 CO 3 ·H 2 O. Also known as crystal ...

  4. Black snake (firework) - Wikipedia

    en.wikipedia.org/wiki/Black_snake_(firework)

    A white mixture of sucrose and sodium bicarbonate will eventually turn black and the snake will grow about 15–50 centimetres (5.9–19.7 in) long after it is lit. [4] Three chemical reactions occur when the snake is lit. Sodium bicarbonate breaks down into sodium carbonate, water vapor, and carbon dioxide: [2] 2 NaHCO 3 (s) → Na 2 CO 3 (s ...

  5. Spectator ion - Wikipedia

    en.wikipedia.org/wiki/Spectator_ion

    A spectator ion is an ion that exists both as a reactant and a product in a chemical equation of an aqueous solution. [1]For example, in the reaction of aqueous solutions of sodium carbonate and copper(II) sulfate:

  6. Aldol condensation - Wikipedia

    en.wikipedia.org/wiki/Aldol_condensation

    There are other reactions of carbonyl compounds similar to aldol condensation: When the base is an amine and the active hydrogen compound is sufficiently activated the reaction is called a Knoevenagel condensation. In a Perkin reaction the aldehyde is aromatic and the enolate generated from an anhydride.

  7. Alkali manufacture - Wikipedia

    en.wikipedia.org/wiki/Alkali_manufacture

    The sodium sulfate is afterwards fired with calcium carbonate and coal. Sodium carbonate can be extracted from this mixture by washing the mixture with water. [2] Until the rise of the ammonia-soda process, which has better economics, the Leblanc process was used extensively making the United Kingdom the lead in alkali production. By the early ...

  8. Cannizzaro reaction - Wikipedia

    en.wikipedia.org/wiki/Cannizzaro_reaction

    Under ideal conditions the reaction produces 50% of both the alcohol and the carboxylic acid (it takes two aldehydes to produce one acid and one alcohol). [5] This can be economically viable if the products can be separated and both have a value; the commercial conversion of furfural into furfuryl alcohol and 2-furoic acid is an example of this ...

  9. Alkali–carbonate reaction - Wikipedia

    en.wikipedia.org/wiki/Alkali–carbonate_reaction

    The alkali–carbonate reaction is an alteration process first suspected in the 1950s in Canada for the degradation of concrete containing dolomite aggregates. [ 1 ] [ 2 ] Alkali from the cement might react with the dolomite crystals present in the aggregate inducing the production of brucite , (MgOH) 2 , and calcite (CaCO 3 ).