AmmoniumDefinition (http://www.merriam-webster.com/dictionary/ammonium) An ion NH4+ derived from ammonia by combination with a hydrogen ion and known in compounds (as salts) that resemble in properties the compounds of the alkali metals. (Merriam-Webster) Preferred Units: N/A Scope Note: N/A This term is used for the following terms: N/A Approved Date 18-Oct-2012 Items having a keyword or observed-property relationship to this subject term Click here to give feedback on this term or suggest an update. |