Welsbach, Baron Carl Auer von

Welsbach, Baron Carl Auer von
[br]
b. 1 September 1858 Vienna, Austria
d. 4 August 1929 Treibach, Austria
[br]
Austrian inventor of the gas mantle.
[br]
Welsbach studied at Vienna Polytechnic and then at Heidelberg under the distinguished German chemist Bunsen. He carried out research into the rare earth elements and in 1885 succeeded in separating didymium into two earths, neodymium and praesodymium. He observed that asbestos fibres impregnated with rare earths, when strongly heated, gave off a bright light. This was the basis for his invention of the incandescent gas mande, which he patented in 1885. He found that a mixture of 99 per cent thoria and 1 per cent ceria produced the best light. The invention was well timed, for during the 1880s gas light was being challenged by the new electric light and the Welsbach mande gave gas light a new lease of life. It was in wide use by 1900, and in that year it was further improved by the introduction of the inverted mande burner which had a higher light efficiency and better light distribution. For industrial and street lighting, Welsbach and Lucas achieved still higher efficiencies using the regenerative principle. Welsbach sought a use for the ceria waste from the lamps and formed an alloy of 35–40 per cent ceria with iron, known as Auer metal. This material is in wide use as the flint in cigarette and gas lighters.
[br]
Bibliography
Articles in J. Chem. Ed., 1929, pp. 2,051–2, and Chemical News, 1902, pp. 254–6.
LRD

Biographical history of technology. - Taylor & Francis e-Librar. . 2005.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Carl Auer Von Welsbach — Auer von Welsbach Le Dr. Carl Auer, baron von Welsbach est un chimiste, inventeur, ingénieur et industriel autrichien, né le 1er septembre 1858 à Vienne (Autriche), mort le 4 août 1929 à Mölbling (Carinthie …   Wikipédia en Français

  • Carl auer von welsbach — Auer von Welsbach Le Dr. Carl Auer, baron von Welsbach est un chimiste, inventeur, ingénieur et industriel autrichien, né le 1er septembre 1858 à Vienne (Autriche), mort le 4 août 1929 à Mölbling (Carinthie …   Wikipédia en Français

  • Carl Auer von Welsbach — Auer von Welsbach Le Dr. Carl Auer, baron von Welsbach est un chimiste, inventeur, ingénieur et industriel autrichien, né le 1er septembre 1858 à Vienne (Autriche), mort le …   Wikipédia en Français

  • Welsbach, Carl Auer, Freiherr von — ▪ Austrian chemist and engineer (baron of) born Sept. 1, 1858, Vienna died Aug. 4, 1929, Treibach, Austria       Austrian chemist and engineer who invented the gas mantle, thus allowing the greatly increased output of light by gas lamps.       In …   Universalium

  • Mosander, Carl Gustaf — ▪ Swedish chemist born Sept. 10, 1797, Kalmar, Swed. died Oct. 15, 1858, Angsholmen       Swedish chemist whose work revealed the existence of numerous rare earth elements with closely similar chemical properties.       In 1826 Mosander was… …   Universalium

  • Auer — Auer, Baron von Welsbach (1858–1929) Austrian chemist Auer was born in Vienna, the son of the director of the Imperial Printing Press. He was educated at the Vienna Polytechnic and at Heidelberg University, where he was a pupil of Robert Bunsen.… …   Scientists

  • Liste von Erfindern — Dies ist eine Liste von Erfindern, die die Welt mit ihren Erfindungen bereichert haben. Ein Erfinder ist jemand, der ein Problem erkannt hat, es gelöst und mindestens einmal damit Erfolg gehabt hat. Er muss nicht der erste gewesen sein; eine… …   Deutsch Wikipedia

  • Lutetium — (pronEng|ljuːˈtiːʃiəm) is a chemical element with the symbol Lu and atomic number 71. A silvery white rare metal, lutetium is the heaviest member of the rare earth group.Parker, Sybil P., ed. Dictionary of Scientific and Technical Terms. 3rd ed.… …   Wikipedia

  • Praséodyme — Cérium ← Praséodyme → Néodyme …   Wikipédia en Français

  • Neodymium — praseodymium ← neodymium → promethium ↑ Nd ↓ U …   Wikipedia

  • Ferrocerium — is a man made metallic material that has the ability to give off a large number of hot sparks when scraped against a rough surface (pyrophoricity), such as ridged steel. Because of this property it is used in many applications, such as clockwork… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”