Jean Stas

Source: Wikipedia, the free encyclopedia.
Jean Stas
atomic weights
Co-discoverer of the atomic weight of carbon
Forensic chemistry
AwardsDavy Medal (1885)
Scientific career
FieldsChemistry
Signature

Jean Servais Stas (21 August 1813 – 13 December 1891) was a

atomic weight of carbon
.

Life and work

Stas was born in

atomic weight of carbon by weighing a sample of the pure material, burning it in pure oxygen, and then weighing the carbon dioxide
produced.

In 1840, Stas was appointed professor at the

elements more accurately than had ever been done before, using an atomic mass of 16 for oxygen as his standard. His results disproved the hypothesis of the English physicist William Prout that all atomic weights must be integer multiples of that of hydrogen. These careful, accurate atomic weight measurements of Stas helped lay the foundation for the periodic system of elements of Dmitri Mendeleev and others.[1]

Following the pioneering work of

Morley and Stas on the other, is enormous.[6]

In 1850, Stas gave the evidence that the Belgian Count Hippolyte Visart de Bocarmé killed his brother-in-law by poisoning him with nicotine.[7]

Stas retired in 1869 because of problems with his voice caused by a throat ailment. He became commissioner of the mint, but resigned in 1872 because he disagreed with the government's monetary policy. Jean Stas died in Brussels and was buried at Leuven.

Honors and awards

On May 5, 1891 an event was held recognizing the 50th anniversary of Jean Servais Stas' membership in the Royal Academy of Belgium. Various presenters spoke about his significant scientific contributions. He was presented with a medal in his honor sculpted by Belgian engraver Alphonse Michaux and with an album containing accolades authored by scientific societies from around the world.[8]

Nouvelles recherches sur les lois des proportions chimiques : sur les poids atomiques et leurs rapports mutuels (1865)
Nouvelles recherches sur les lois des proportions chimiques : sur les poids atomiques et leurs rapports mutuels (1865)

Selected writings

  • Stas, Jean Servais (1894). L. W. Spring (ed.). Œuvres Complètes. Vol. 1. Brussels.{{cite book}}: CS1 maint: location missing publisher (link)
  • Stas, Jean Servais (1894). J. B. Depaire (ed.). Œuvres Complètes. Vol. 2. Brussels: Bruxelles [etc.] C. Muquardt.
  • Stas, Jean Servais (1894). L. W. Spring (ed.). Œuvres Complètes. Vol. 3. Brussels: Bruxelles [etc.] C. Muquardt.
  • Stas, Jean Servais (1865). Nouvelles recherches sur les lois des proportions chimiques : sur les poids atomiques et leurs rapports mutuels. Brussels: Bruxelles. M. Hayez

See also

Further reading

References

  1. doi:10.1080/00033797400200221
    .
  2. ^ Matthew Moncrieff Pattison Muir, The Elements of Chemistry (1904)
  3. ^ Nouv. Recherches sur los lois des proportions chimiques (1865) 152, 171, 189
  4. ^ "Conservation of Mass in Chemical Changes"Journal - Chemical Society, London, Vol.64, Part 2 Chemical Society (Great Britain)
  5. ^ William Edwards Henderson, A Course in General Chemistry (1921)
  6. ^ Ida Freund, The study of Chemical Composition: an account of its method and historical development, with illustrative quotations (1904)
  7. PMID 20355192
    .
  8. ^ L'Academie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique, Manifestation en L'Honneur de Jean-Servais Stas a L'Occasion du Cinquantieme Anniversaire de Sa Nomination Comme Membre Titulaire de la Classe des Sciences 1841 - 1891, Bruxelles, 1891.
Wikimedia Commons has media related to Jean Servais Stas.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Jean_Stas&oldid=1227140776"