Nomenclature What?s In a Name? Common names describe some aspect of the compound Examples: soda ash Epsom salts What?s In a Name? IUPAC system International Union of Pure & Applied Chemistry Common Name Chemical Name Formula Common Names of Some Industrial Chemicals oil of vitriol sulfuric acid H2SO4 caustic lime calcium hydroxide Ca(OH)2 lye sodium hydroxide NaOH Common Name Chemical Name Formula Common Names of Some Industrial Chemicals soda ash sodium carbonate Na2CO3 milk of magnesia magnesium hydroxide Mg(OH)2 IUPAC System Developed in the late 1800s Requires determining the type of compound before naming it Has a different set of naming rules for each type of compound Flow Chart Green: questions what type of bond Blue: gives naming information