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  2. Ammonium carbonate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_carbonate

    Ammonium carbonate is a chemical compound with the chemical formula [N H 4] 2 C O 3. It is an ammonium salt of carbonic acid. It is composed of ammonium cations [NH 4] + and carbonate anions CO 2− 3. Since ammonium carbonate readily degrades to gaseous ammonia and carbon dioxide upon heating, it is used as a leavening agent and also as ...

  3. Ammonium carbamate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_carbamate

    At ordinary temperatures and pressures, ammonium carbamate exists in aqueous solutions as an equilibrium with ammonia and carbon dioxide, and the anions bicarbonate, HCO − 3, and carbonate, CO 2− 3. [8] [6] [9] Indeed, solutions of ammonium carbonate or bicarbonate will contain some carbamate anions too. H 2 NCO − 2 + 2H 2 O ⇌ NH + 4 ...

  4. Ammonium bicarbonate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_bicarbonate

    Ammonium bicarbonate is an irritant to the skin, eyes and respiratory system. Short-term health effects may occur immediately or shortly after exposure to ammonium bicarbonate. Breathing ammonium bicarbonate can irritate the nose, throat and lungs causing coughing, wheezing and/or shortness of breath.

  5. Ammonium - Wikipedia

    en.wikipedia.org/wiki/Ammonium

    Ammonium is a modified form ... Ammonium cation is found in a variety of salts such as ammonium carbonate, ammonium ... the salt is heated in presence of alkali ...

  6. Thermal decomposition - Wikipedia

    en.wikipedia.org/wiki/Thermal_decomposition

    Calcium carbonate (limestone or chalk) decomposes into calcium oxide and carbon dioxide when heated. The chemical reaction is as follows: CaCO 3 → CaO + CO 2 The reaction is used to make quick lime, which is an industrially important product. Another example of thermal decomposition is 2Pb(NO 3) 2 → 2PbO + O 2 + 4NO 2.

  7. Aminolysis - Wikipedia

    en.wikipedia.org/wiki/Aminolysis

    For example, acetic acid reacts with ammonium carbonate to produce ammonium acetate. [3] After the reaction is completed, ammonium acetate is heated under reflux (170 °C) to dehydrate the salt and eliminate excess acetic acid and water producing acetamide: [4]

  8. Historic asteroid sample reveals the ‘building blocks of life ...

    www.aol.com/unprecedented-asteroid-samples...

    Ammonia ice is more stable the farther it is from a heat source, like the sun. The researchers believe that the ammonia-enriched ice melted inside the large parent asteroid body, estimated to be ...

  9. List of alchemical substances - Wikipedia

    en.wikipedia.org/wiki/List_of_alchemical_substances

    Cadmia/tuttia/tutty – probably zinc carbonate. Calamine – zinc carbonate. Calomel/horn quicksilver/horn mercury – mercury(I) chloride, a very poisonous purgative formed by subliming a mixture of mercuric chloride and metallic mercury, triturated in a mortar and heated in an iron pot. The crust formed on the lid was ground to powder and ...