Germanium Latest News
India is engaging with the Chinese government to navigate export restrictions on germanium, a critical mineral that is used in manufacturing of semiconductors, fiber optic cables and solar panels.Â
About Germanium
- It is a chemical element between silicon and tin in Group 14 (IVa) of the periodic table.
- It has the chemical symbol Ge and the atomic number 32.
- It is a silvery-gray metalloid, intermediate in properties between the metals and the nonmetals.Â
- It has a diamondlike crystalline structure, and it is similar in chemical and physical properties to silicon.Â
- Germanium is stable in air and water and is unaffected by alkalis and acids, except nitric acid.
- Although germanium was not discovered until 1886 by Clemens Winkler, a German chemist, its existence, properties, and position in the periodic system had been predicted in 1871 by the Russian chemist Dmitry Ivanovich Mendeleyev, who called the hypothetical element ekasilicon.Â
- Germanium did not become economically significant until after 1945, when its properties as a semiconductor were recognized as being of value in electronics.Â
- It remains of primary importance in the manufacture of transistors and of components for devices such as rectifiers and photocells.
- It is widely distributed in nature but is too reactive to occur free.Â
- Germanium ores are rare. They are found in small quantities as the minerals germanite and argyrodite.
- Today, germanium is extracted as a by-product of zinc production and from coal fly ash.Â
- It is estimated that 75% of worldwide production of germanium is sourced from zinc ores, mainly the zinc sulfide mineral sphalerite, and 25% from coal.
- Major Producers:Â
- The major worldwide producer of germanium is China, responsible for around 60% of total production.Â
- The remaining production of germanium comes from Canada, Finland, Russia, and the United States.
Germanium FAQs
Q1:Â Is germanium a conductor?
Ans:Â Germanium is not a good conductor; it is a semiconductor.
Q2:Â Is germanium toxic to humans?
Ans:Â Germanium compounds are relatively less toxic compared to other metalloids and metals
Q3:Â Germanium is mostly extracted as a by-product of which metal?
Ans:Â Zinc
Source:Â TH