XV. On the identity of Columbium and Tantalum

  title={XV. On the identity of Columbium and Tantalum},
  author={William Hyde Wollaston},
  journal={Philosophical Transactions of the Royal Society of London},
  pages={246 - 252}
  • W. H. Wollaston
  • History
  • Philosophical Transactions of the Royal Society of London
W ithin a short time after the discovery of columbium by Mr. Hatchett in 1801, a metallic substance was also discovered in Sweden by M. EKEBERG, differing from every metal then known to him ; and accordingly he described the properties by which it might be distinguished from those which it most nearly resembled. But although the Swedish metal has retained the name of Tantalum given to it by M .Ekeberg, a reasonable degree of doubt has been entertained by chemists, whether these two authors had… 

Four brilliant students of Henri Sainte-Claire Deville 2. Louis Joseph Troost

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Separation of tantalum and niobium with solvent extraction

Separation of tantalum and niobium with solvent extraction. Niobium (Nb) and tantalum (Ta) have similar chemical and physical properties, which is why they are difficult to separate. They are found

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  • J. Both
  • Engineering
    IEEE Electrical Insulation Magazine
  • 2016
The first article in this series [1] covered the early history of electrolytic capacitors, from their invention around 1880 to the invention of the modern Al electrolytic capacitor structure in 1925.

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Development and applications of porous tantalum trabecular metal-enhanced titanium dental implants.

The biological aspects of porous tantalum-enhanced titanium dental implants, in particular the effects of anatomical consideration and oral environment to implant designs, are reviewed.