The dodecahydrate occurs naturally as the rare mineral tschermigite. The dissolution of the salt in water is an endothermic process. Il s'agit d'un sel d'ammonium NH 4 + et d'acide sulfurique H 2 SO 4 qui possède de très nombreuses applications. Ammonium sulfate (American English and international scientific usage; ammonium sulphate in British English); (NH4)2SO4, is an inorganic salt with a number of commercial uses. It contains 21% nitrogen and 24% sulfur. It is a strong oxidizing agent that is used in polymer chemistry, as an etchant, and as a cleaning and bleaching agent. Ammonium cation is found in a variety of salts such as ammonium carbonate, ammonium chloride and ammonium nitrate.Most simple ammonium salts are very soluble in water. It is a colourless (white) salt that is highly soluble in water, much more so than the related potassium salt.

Ammonium persulfate (APS) is the inorganic compound with the formula (NH 4) 2 S 2 O 8.

Ammonium sulfate is a chemical compound.Its chemical formula is (NH 4) 2 SO 4.It contains ammonium and sulfate ions.It is slightly acidic because ammonia is a weak base. It is used in fertilizers to provide both sulfur and nitrogen to plants. Il existe dans la nature, sous le nom minéralogique de mascagnite. It is made by reacting ammonia with sulfuric acid.It breaks down when heated. An exception is ammonium hexachloroplatinate, the formation of which was once used as a test for ammonium.The ammonium salts of nitrate and especially perchlorate are highly explosive, in these cases ammonium is the reducing … 12H 2 O. Le sulfate d'ammonium est un corps composé chimique ionique de formule (NH 4) 2 SO 4. It is used in small amounts in a variety of niche applications. Ammonium iron(II) sulfate, or Mohr's salt, is the inorganic compound with the formula (NH 4) 2 Fe(SO 4) 2 (H 2 O) 6.Containing two different cations, Fe 2+ and NH 4 +, it is classified as a double salt of ferrous sulfate and ammonium sulfate.It is a common laboratory reagent because it is readily crystallized, and crystals resist oxidation by air. The most common use is as a soil fertilizer.

Ammonium sulfate has an acidifying effect on soil due to the nitrification process, not from the presence of sulfate, which has a negligible effect on pH.

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