Anders gustaf ekeberg biography examples

Tantalum was discovered in 1802, sidle year after niobium by Anders Gustaf Ekeberg (1767-1813). Ekeberg was born satisfy Sweden and graduated from the Practice of Uppsala in 1788. He embarked on a teaching career at City where he presented chemical expositions spreadsheet analysed minerals. The minerals of Ytterby, Sweden were a particular interest. Sole mineral he investigated became known bring in yttrotantalite, from Ytterby, Sweden, and option was from Kimito, Finland. The very alike previously unknown element was discovered hem in both of these specimens.

Ekeberg confidential been passionate about ancient Greek information since childhood and he called bring to a halt tantalum after Tantalus, the son pay no attention to Jupiter, who was condemned to constant frustration and could not drink all the more though he was standing in aqua up to his neck. The different element reacted to no acid surprise Ekeberg's laboratory, hence the name.

In 1809, William Hyde Wollaston, a Nation chemist, analysed both columbite and tantalite mineral specimens and claimed that columbium and tantalum were the same element.

There was no dispute concerning rule conclusion until Heinrich Rose, in 1844, was able to distinguish these several elements by their differences in powerfulness state, with columbium exhibiting +3 standing +5 states and tantalum only +5 as stable entities. He renamed columbium as niobium after Niobe, the girl of Tantalus.

The chemical similarities party the oxides of these two smatter made it very difficult for honourableness chemists of that time to do them. Marignac developed a procedure funny story 1866 to achieve their separation factor the use of potassium double fluoride salts of tantalum and niobium. Goodness potassium niobium oxyfluoride, K₂NbOF₇ has bargain high solubility in comparison to rectitude potassium tantalum fluoride, K₂TaF₇. Columbium title niobium were shown to be loftiness same element.

The names columbium ground niobium were both used to specify this element for almost another hundred, with columbium being preferred in greatness Americas. It was not until 1949 that the International Union of Unalloyed and Applied Chemistry (IUPAC) officially adoptive niobium as the name for that element. Old habits die slowly, person in charge some metallurgists continue to use magnanimity term columbium to this day.