Indium
IN-di-em
Indium (In) is a silver-white metal that has the atomic number 49 in the periodic table. It is located in Group 13 of the periodic table. It has the symbol In.
Indium is classed as an ‘other’ metal. Like Gallium it exists in a state of a liquid over a wide range of temperatures due to its low melting point and high boiling point. It is used in the production of gallium alloys with low melting points and also used in the production of semiconductors. Indium is found in zinc minerals in the earths crust. It was discovered in 1863 by Ferdinand Reich upon examining zinc sulfide ores he isolated Indium. After careful spectrum analysis he discovered a bright indigo line. It is located in Group 13 as a metal. It has a melting point of 156°c and a boiling point of 2070°c.
FAQ's
Ferdinand Reich, T. Richter
1863
Uses
Used to coat high speed bearings and as an alloy that lowers the melting point of other metals. Relativly small amounts are used in dental items and in electronic semiconductors.
Sources
Found in certain zinc ores.
About the author
Nathan M
Nathan has a degree in BSc Biomedical Chemistry at Warwick University and a degree in PGCE Science at Wolverhampton University, UK. Nathan's subject matter ranges from general chemistry and organic chemistry. Nathan also created the curriculum on Breaking Atom in the course page.
Citation
In
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