Indium
| Latin name | Indium |
| English name | Indium |
| chemical symbol | In |
| atomic number | 49 |
| relative atomic mass | 114,818 |
| period | 5 |
| group | III.A |
| classification | metals |
| discovery year | 1863 |
| discoverer | F. Reich, T. Richter |
| melting point [°C] | 156,61 |
| boiling point [°C] | 2080 |
| density [g cm-3] | 7,31 |
| density at melting point [g cm-3] | 7,02 |
| electronegativity [Pauling] | 1,78 |
| stand. el. potential [V] | -0,2 |
| oxidation states | I, II, III |
| electron configuration | [Kr]4d10 5s2 5p1 |
| atomic radius [pm] | 156 |
| covalent radius [pm] | 144 |
| specific heat [J g-1K-1] | 0,23 |
| heat of fusion [kJ mol-1] | 3,263 |
| thermal conductivity [W m-1 K-1] | 81,8 |
| el. conductivity [S m-1] | 3,4.106 |
| 1. ionizing potential [eV] | 5,7864 |
| 2. ionizing potential [eV] | 18,869 |
| 3. ionizing potential [eV] | 28,03 |
| Mohs hardness | 1,2 |
| Brinell hardness [MPa] | 8,8 |
| Young's modulus [GPa] | 11 |
| state at normal conditions | solid |
Indium is a malleable, very soft, silvery-white metal. Indium was discovered by Ferdinand Reich and H.T. Richter in 1863.
Resources
- BARTHELMY, David. Mineral Species containing Indium. In: Mineralogy database [online]. 2010 [cit. 2012-08-23]. Available from: http://webmineral.com/chem/Chem-In.shtml
- FEDOROV, Pavel; et al. Chimija gallija, indija i tallija. Novosibirsk: Nauka, 1977.
- FLEISCHER, Michael; HARDER, James. Trace elements investigations the occurence of indium - Report No.10. U.S. DEPARTMENT OF THE INTERIOR, U.S. GEOLOGICAL SURVEY, 1945.
- JORGENSON, J; GEORGE, M. Indium. In: U.S. DEPARTMENT OF THE INTERIOR, U.S. GEOLOGICAL SURVEY. Mineral comodity profile [online]. 2005 [cit. 2012-08-18]. Available from: http://pubs.usgs.gov/.../2004-1300.pdf
- JURSÍK, František. Anorganická chemie kovů. Praha: Vysoká škola chemicko-technologická, 2002. ISBN 80-7080-504-8.
- Krušné hory mají největší zásoby vzácného prvku india na světě. In: Novinky.cz [online]. 2009-01-13 [cit. 2011-02-23]. Available from: http://www.novinky.cz/.../krusne-hory-maji-nejvetsi-zasoby-vzacneho-prvku-india-na-svete.html
- MELLOR, Joseph. Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 5. Londýn: Longmans, Green & Co., 1924.
- STARÝ, Jaromír; SITENSKÝ, Ivo; HODKOVÁ, Tereza. Surovinové zdroje České republiky - Nerostné suroviny 2011. In: Česká geologická služba. Surovinové zdroje v ČR [online]. 2011 [cit. 2012-07-25]. Available from: http://www.geology.cz/.../rocenka2011sur.pdf
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