What is Ammonium?
{{Chembox | ImageFile1 = Ammonium-2D.svg | ImageSize1 =170px | ImageAlt1 = 2-D skeletal version of the ammonium ion | ImageFileL1 = Ammonium-3D-balls.png | ImageAltL1 = [[Ball-and-stick model]] of the ammonium cation | ImageFileR1 = Ammonium-3D-vdW.png | ImageAltR1 = Space-filling model of the ammonium cation | SystematicName = Azanium<ref>{{RedBookRef|pages=71,105,314}}</ref> | IUPACName = Ammonium ion | OtherNames = |Section1={{Chembox Identifiers | CASNo = 14798-03-9 | CASNo_Ref = {{cascite|correct|CAS}} | UNII_Ref = {{fdacite|correct|FDA}} | UNII = 54S68520I4 | PubChem = 16741146 | ChemSpiderID = 218 | SMILES = [NH4+] | InChI = 1/H3N/h1H3/p+1 | InChIKey = QGZKDVFQNNGYKY-IKLDFBCSAZ | StdInChI = 1S/H3N/h1H3/p+1 | StdInChIKey = QGZKDVFQNNGYKY-UHFFFAOYSA-O | RTECS = | MeSHName = D000644 | ChEBI = 28938}} |Section2={{Chembox Properties | Formula = {{chem|N|H|4|+}} | N=1 | H=4 | Appearance = | Solubility = | pKa = 9.25 | ConjugateBase = [[Ammonia]] }} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} |Section4={{Chembox Structure | MolShape = Tetrahedral }} }} '''Ammonium''' is an [[ion]]. It is an [[ammonia]] [[molecule]], NH<sub>3</sub>, [[protonation|protonated]] (with a hydrogen ion added) to make NH<sub>4</sub><sup>+</sup>. It bonds with negative ions such as [[chloride]] to make salts such as [[ammonium chloride]]. Ammonium is slightly [[reducing agent|reducing]] so it can react with strong [[oxidizing agent]]s. ==References== {{reflist}} ==Related pages== *[[Ammonium chloride]] *[[Ammonia]] *[[Protonation]] *[[Hydrogen]] [[Category:Nitrogen compounds]] [[Category:Ions]] {{chem-stub}}