Richter, Hieronymus Theodor

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

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. 

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,... 

Hieronymus Theodor Richter, 1824-1898. Director of the Freiberg School of Mines The first to observe the characteristic blue spectral lines of indium Metallurgist, assayer, and authority on blowpipe analysis... 

Hieronymus Theodor Richter was bom at Dresden on November 21, 1824. He became a metallurgical chemist at the Freiberg School of Mines. When he placed some of the zinc blende in the loop of a platinum wire and heated it in the flame of a Bunsen burner, he observed a brilliant indigo line which did not coincide with either of the blue lines of cesium (20, 52). Because of this characteristic spectral line the new element was christened indium. The publication of this contribution under joint authorship was a mistake which Professor Reich afterward regretted, for Richter tried to make it appear that he Was the sole discoverer (2, 51, 52). 

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... 

Birth of Hieronymus Theodor Richter, the first to observe the indigo line of indium. 

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. 

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. 

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