Reich, Ferdinand

Indium (In, [Kr]4 /I05.v25/ 1), name and symbol after the indigo line in its atomic spectrum. Discovered (1863) by Ferdinand Reich and Hieronymus Theodor Richter. Silvery lustrous grey, very soft metal. 

Indium In 1863 (Freiberg, Germany) Ferdinand Reich and Hieronymous Richter (both German) 159... 

Kirchhoff s and Bunsen s results created a sensation within the scientific community. Soon scientists throughout Europe were using spectroscopes in their research. Inevitably, some of them found yet more new elements. In 1861 the English chemist and physicist William Crookes discovered thallium, a heavy metal, in a sample of clay. In 1863 two German chemists, Ferdinand Reich and Hieronymous Richter, discovered another new metal, which they called indium. And in 1868 the French astronomer Pierre Jannsen observed the sun with a spectroscope during an eclipse and discovered the spectral lines of a new element, helium, in the sun s atmosphere. This was an especially sensational discovery, because helium had never been observed on Earth. 

German chemist Ferdinand Reich Soft bluish metal and by-product of zinc refining used chiefly as an alloy in the manufacture of transistors and as an indicator of chemical activity in nuclear reactors. 

Flattner s Blowpipe Analysis was revised by his former student, Hieronymus Theodor Richter, who, with Ferdinand Reich, discovered the element indium. 

In 1863 Ferdinand Reich, a professor of physics at the famous School of Mines at Freiberg, and his assistant, Hieronymus Theodor Richter,... 

Ferdinand Reich, 1799-1882. Professor of physics and inspector at the Freiberg School of Mines Discoverer of indium He studied the deviations m the declination of the magnetic needle, the rainfall and snowfall m Freiberg, and the temperature of the rocks at different depths. 

Reich and Richter found that it is easier to isolate it from the zinc than from the original blende. They reduced indium oxide in a current of hydrogen or illuminating gas and melted the metal under potassium cyanide (44, 45). At the suggestion of Ferdinand Reich, Clemens Winkler made a thorough study of the metal and its compounds (20). 

Taschner, Ferdinand Reich, Mitteilungen des Freiberger Altertumsveremes,... 

In the fall of 1885 there was found, at the approach of a vein in the Himmelsfurst mine near Freiberg, a new ore which the discoverer, Albin Weisbach, a professor of mineralogy at the Freiberg School of Mines, named argyrodite (28). Hieronymus Theodor Richter, the chemist who with Ferdinand Reich had discovered indium, made a... 

Feb. 19, 1799 Birth of Ferdinand Reich, the discoverer of indium, at Bern-burg. 

Indium is a soft, silver-white metal. It was first isolated in 1863 by German chemists Ferdinand Reich and Hieronymus Theodor Richter. Indium was so named because of an intense blue (indigo) line in its emission spectrum. The element is widely distributed in several ores (often in conjunction with zinc) but in low concentrations, accounting for only 0.05 part per million (ppm) of Earth s crust. 

Indium is part of the aluminum family in Group 13 (IIIA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to each other. Indium was discovered in 1863 by German chemists Ferdinand Reich (1799—1882) and Hieronymus Theodor Richter (1824—1898). 

German chemists Ferdinand Reich and Hieronymus Theodor Richter discover indium. 

The name is derived from the Latin word indicum, referring to an indigo pigment. It was named after the bright indigo spectral line discovered in 1863 by Ferdinand Reich (1799-1882) and Hieronymus Theodor Richter (1824—1898). Metallic indium was first produced in 1924. It is a silvery-white metal. About 4 million ounces worldwide are produced annually. The elemental form does not occur naturally. Indium is used as a trace element in electronics and specialty alloys and as a substitute for silver in the manufacturing of mirrors. 

Indium (In) was first isolated by Ferdinand Reich in 1836. However, he was color blind and confused the brilliant indigo spectral color of indium with thallium. Indium was later identified by Hieronymus Richter in 1863 as part of ZnS, a mineral called zinc blende. 

Indium Symbol In. A soft silvery element belonging to group 13 (formerly IIIB) of the periodic table a.n. 49 r.a.m. 114.82 r.d. 7.31 (20°C) m.p. 156.6°C b.p. 2080 2°C. It occurs in zinc blende and some iron ores and is obtained from zinc flue dust in total quantities of about 40 tonnes per annum. Naturally occurring indium consists of 4.23% indium-1 13 (stable) and 95.77% indium-115 (half-life 6x10 years). There are a further five short-lived radioisotopes. The uses of the metal are small - some special-purpose electroplates and some special fusible alloys. Several semiconductor compounds are used, such as InAs, InP, and InSb. With only three electrons in its valency shell, indium is an electron acceptor and is used to dope pure germanium and silicon it forms stable in-dium(I), indium(II), and indium(III) compounds. The element was discovered in 1863 by Ferdinand Reich (1799-1882) and Hieronymus Richter (1824-90). 

Following closely on the heels of this work came the discovery of indium by another German professor, Ferdinand Reich. The colorblind Reich had to leave the spectroscopic analysis of this element with its bright indigo line (hence indium) to his normally sighted assistant, Hieronymus Theodor Richter. In France Boisbaudran performed careful spectral examinations of 35 elements, including his two new rare earth elements, samarium and europium, and he wrote his results in an important reference volume. 

Spectroscopy soon fulfilled its promise, and, using the new technique, Bunsen and Kirchhoff detected and then isolated caesium (1860) and rubidium (1861). Thallium was discovered in 1861 by William Crookes (1832-1919) and indium in 1863 by Ferdinand Reich (1799-1882) and H. T. Richter (1824-1898). 

Richter, Hieronymus Theodor (1824-98) German chemist who worked with Ferdinand Reich and discovered the metallic element indium. 

Indium 1863 Ferdinand Reich (Germany) and Theodor Richter (Germany)... 

Discovery Ferdinand Reich and Hieronymus Richter at the Bergakademie Freiberg in Germany... 

---