2 DiscoveryTitanium was discovered in 1791 by the English clergyman William GregorFour years later, German chemist Martin Heinrich Klaproth returned and isolated the new elementHe suggested the name of titanium for the element in honor of the Titans, mythical giants who ruled the Earth until they were overthrown by the Greek gods
3 CharacteristicsTitanium's relative density is about half that of copper and about 60% that of ironFor its weight, titanium is about six times stronger than aluminum and about twice as strong as ironTitanium has a much better heat resistance than aluminumTitanium is safe because it is biocompatible and does not harm the human bodyTitanium is 100% recyclable and is very friendly to the environment
4 Source of the ElementTitanium is the ninth-most abundant element in the Earth's crustIt exists mostly in Australia, Canada, China, New Zealand, Norway, India, Ukraine, North America and South AfricaTotal known reserves of titanium are estimated to exceed 600 million tons
5 UsesTitanium is used in steel as an alloying element to reduce grain size and as a deoxidizerTitanium is often alloyed with aluminium vanadium, copper iron, manganese, molybdenum, and with other metals for various reasons, such as reducing grain size and to hardenTitanium mill products can be found in industrial, aerospace, and recreational fields
7 BibliographyTitanium Discovery and Naming. 1 Dec <http://science.jrank.org/pages/6851/Titanium-Discovery-naming.html>.WebElements Periodic Table of the Elements. 1 Dec <http://www.webelements.com/titanium/>.Titanium. 1 Dec <http://periodic.lanl.gov/elements/22.html>.