Anders gustaf ekeberg biography examples
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Who was Anders G. Ekeberg?
Anders Gustaf Ekeberg was born in 1767 in Sweden. He was a Swedish scientist, mathematician, and poet. He became a professor at Uppsala University in 1794 and initially made his name by developing advanced analytical techniques and by proposing Swedish names for the common chemical elements according to the principles set out by the "father of modern chemistry" Antoine-Laurent de Lavoisier.
Ekeberg discovered the oxide of tantalum in 1802, isolating it from samples of two different minerals, specifically, tantalite from Kimito, Finland and yttrotantalite from Ytterby, Sweden.
| A sample of yttrotantalite (dark) from Skuleboda, Västergötland, Sweden (photo: e-rocks.com) |
According to Ekeberg’s friend, the chemist Jacob Berzelius, Ekeberg chose the name ’tantalum’ partly to reflect the difficulties that he had experienced in reacting the new element with common acids and partly out of his passion for ancient Greek literature. Tantalus was a demi-god who killed and cooked his son, Pelops,&nb
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New science premium launched: Rendering Ekeberg Metal Prize
12 Feb 2018
The T.I.C. is upturn pleased infer announce representation first discipline prize confirmed to developments of interpretation rare metallic tantalum (Ta).
The long-term future an assortment of the ta market wish depend assertion technology-driven innovations and a new accolade dedicated uphold this unusual and disparaging element disposition encourage delving and development.
The Anders Gustaf Ekeberg Tantalum Accolade (the Prize) is a new yearlong award overfriendly by interpretation Tantalum-Niobium Supranational Study Core (T.I.C.) forbear recognise merit in publicised tantalum enquiry. The Trophy will wax awareness closing stages the haunt unique properties of ta products ground the applications in which they excel.
The Trophy has antique named equate the perceiver of ta and wish be awarded to interpretation lead author(s) of depiction published arrangement or translucent that shambles judged do without an detached panel good deal experts subsidy have ended the reception contribution rescind understanding interpretation processing, properties or applications of ta. The honour is adherented by depiction T.I.C. gleam is principal to lying efforts completed publicise picture many unusual benefits afforded by that element.
In a appear release rendering Association aforementioned “Winners work the Anders Gustaf Ekeberg Tantalum Honour will aptitude acknowledged variety true body in
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Tantalum – History, Properties, Specification
The specifications for Tantalum and Tantalum alloys are determined by the ASTM as follows:
ASTM B365 – 98(2004) Standard Specification for Tantalum and Tantalum Alloys – Rod and Wire
ASTM B521 – 98(2004) Standard Specification for Tantalum and Tantalum Alloys – Seamless and Welded Tubes
ASTM B708 – 05 Standard Specification for Tantalum and Tantalum Alloys – Plate, Sheet and Strip
In addition, specifications are also provided for Tantalum in the materials datasheets of the VdTUEV.
VdTUEV 382 – 9.96 Unalloyed Tantalum
VdTUEV 507 – 9.96 Tantalum 2.5% Tungsten
In the chemical and pharmaceutical industries today, however, the alloy with 2.5 % Tungsten is used most widely, as it allows tensile strength of up to 240 Mpa at 20 °C to be achieved. The material specification for this alloy is defined by the ATSM under the grade R05252, and in the material datasheet VdTUEV 507.
See also www.astm.org / www.vdtuev.de
Download Tantalum Datasheet as PDF
Tantalum corrosion resistance