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  2. Ammonium - Wikipedia

    en.wikipedia.org/wiki/Ammonium

    Infobox references. Ammonium is a modified form of ammonia that has an extra hydrogen atom. It is a positively charged (cationic) molecular ion with the chemical formula NH+ 4 or [NH4]+. It is formed by the addition of a proton (a hydrogen nucleus) to ammonia (NH3).

  3. Ammonia - Wikipedia

    en.wikipedia.org/wiki/Ammonia

    Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula N H 3. A stable binary hydride and the simplest pnictogen hydride , ammonia is a colourless gas with a distinctive pungent smell.

  4. Ammonia solution - Wikipedia

    en.wikipedia.org/wiki/Ammonia_solution

    Ammonia solution, also known as ammonia water, ammonium hydroxide, ammoniacal liquor, ammonia liquor, aqua ammonia, aqueous ammonia, or (inaccurately) ammonia, is a solution of ammonia in water. It can be denoted by the symbols NH 3 (aq). Although the name ammonium hydroxide suggests a salt with the composition [NH+4] [OH−], it is actually ...

  5. Ammonium persulfate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_persulfate

    Ammonium persulfate (APS) is the inorganic compound with the formula (NH 4) 2 S 2 O 8. It is a colourless (white) salt that is highly soluble in water, much more so than the related potassium salt. It is a strong oxidizing agent that is used as a catalyst in polymer chemistry, as an etchant, and as a cleaning and bleaching agent. [1]

  6. Quaternary ammonium cation - Wikipedia

    en.wikipedia.org/wiki/Quaternary_ammonium_cation

    In organic chemistry, quaternary ammonium cations, also known as quats, are positively-charged polyatomic ions of the structure [NR4]+, where R is an alkyl group, an aryl group [ 1 ] or organyl group. Unlike the ammonium ion (NH+4) and the primary, secondary, or tertiary ammonium cations, the quaternary ammonium cations are permanently charged ...

  7. Ammonium bicarbonate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_bicarbonate

    Infobox references. Ammonium bicarbonate is an inorganic compound with formula (NH 4)HCO 3. The compound has many names, reflecting its long history. Chemically speaking, it is the bicarbonate salt of the ammonium ion. It is a colourless solid that degrades readily to carbon dioxide, water and ammonia.

  8. Ammonium oxalate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_oxalate

    Ammonium oxalate is a chemical compound with the chemical formula [N H 4]2 C 2 O 4. Its formula is often written as (NH4)2C2O4 or (COONH4)2. It is an ammonium salt of oxalic acid. It consists of ammonium cations ([NH4]+) and oxalate anions (C2O2− 4). The structure of ammonium oxalate is ( [NH4]+)2[C2O4]2−. Ammonium oxalate sometimes comes ...

  9. Ammonium bromide - Wikipedia

    en.wikipedia.org/wiki/Ammonium_bromide

    Infobox references. Ammonium bromide, NH 4 Br, is the ammonium salt of hydrobromic acid. The chemical crystallizes in colorless prisms, possessing a saline taste; it sublimes on heating and is easily soluble in water. On exposure to air it gradually assumes a yellow color because of the oxidation of traces of bromide (Br −) to bromine (Br 2).