ammoniumjonen
The ammonium ion, NH4+, is the positively charged species formed when ammonia (NH3) accepts a proton; in Norwegian and Danish, it is called ammoniumjonen. It is the conjugate acid of ammonia and is found in a wide range of salts, such as ammonium chloride (NH4Cl) and ammonium sulfate ((NH4)2SO4).
In terms of structure, the ion adopts a tetrahedral geometry around nitrogen, with four N–H bonds and
In aqueous solution, NH4+ is a weak acid. It can donate a proton to water to form
Ammonium salts are highly soluble in water and occur widely in nature and industry. They include fertilizers
Ammonium salts are generally of low to moderate toxicity but can irritate the skin, eyes, and respiratory