The Uses of Iron (II) Oxide By: Isabel Rimando Iron (II) oxide [FeO] Not to be confused with iron (III) oxide (rust) Iron (II) oxide [FeO] aka: hematite or ferrous oxide Found in 5% of the Earths crust Structure Rock salt structure Made from iron (metal) and oxygen (nonmetal) Ionic bond Used for Cave paintings Paleolithic paintings at Lascaux [pronounced lasko] Today Tattoos! Today Used as a pigment in tattoo ink Safe to be used by humans Tattoo ink Pigment is made of particles Needs dispersal agent to help it flow easily and spread evenly Alcohol prevents growth of pathogens Tattoo ink Adding water can create gray tones Tattoo ink Inserted with a needle in order to remain in the skin Tattoo ink Permanent, but will fade over time Bodys immune system will try to break down particles and remove it from the skin Large pigment molecules will remain embedded Not just for tattoos Also good for cosmetics Mascara Eye shadow Not just for tattoos Also good for cosmetics Non-toxic Water-repellant Doesnt run or bleed Iron (II) oxide is cool!! *As long as you can make it look good Iron (II) oxide is cool!!