Indium
TM
Indium
TM
Buy Indium
TRADIUM is registered for REACH (R egistration, Evaluation, Authorisation and Restriction of CHemicals) as a distributor of indium and thus meets the highest demands for transparency and information sharing along the supply chain.
At TRADIUM, Indium is available in the following purities and shapes:
Indium metal
Purity from 99.9 % to 99.9999 %
Indium nitrate
Purity from 99.99 % to 99,999 %
Indium oxide
Purity from 99.99 % to 99,999 %
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Areas of Application of Indium
Indium Tin Oxide for Touchscreens
The majority of the indium produced has been processed into indium-tin oxide (ITO) since 1992. The most prominent application of the coating is finger-operated screens – touch screens. Here, the ITO alloy, consisting of 90% indium oxide and 10% tin oxide, ensures that transparent surfaces become conductive.
Photodiodes and Indium Arsenide
In the form of indium arsenide, indium is used for photodiodes (light-receiving diodes). These are sensitive from 800 to 2,600 nanometers, the wave spectrum of infrared radiation, and are therefore ideal for thermal imaging cameras. Fields of application: Military, fire brigade, police, but also infrared cameras for driver assistance systems and autonomous driving.
Name: Indium
Symbol: In
Ordinal number: 49
Mass fraction earth shell: 0.1 ppm
Density: 7.31 g/cm3
Mohs hardness: 1.2
Melting temperature: 156.59 °C
Seatemperature: 2.072 °C
Electr. Conductivity:
12,5 · 106 A’ V-1-1
In the periodic table, Indium belongs to the Boron Group.
History
Physicist Ferdinand Reich and chemist Theodor Richter make a chance discovery in Freiberg in 1863: Indium. When trying to detect thallium in the black sphalerite in Freiberg, they discovered the indigo blue spectral line of an unknown element during the spectral analysis. Indium is then named after the color of its spectral line.
Indium is presented to the public for the first time at the 1867 World’s Fair. Theodor Richter personally brings a 500g ingot cast for the occasion to Paris. However, only initiates can see the new raw material. A lead ingot awaits the unwitting visitors at the stand. Richter hides the real bar in his boot and only secretly pulls it out. Indium becomes economically relevant from the 1930s onwards, because only now can it be refined.
Special postcard for the 125th anniversary of the discovery of the indium