"Dumas devised an accurate and excellent method for determining the specific gravities, or densities, of gases which could be used at high temperatures, thus enabling him to experiment upon the vapor densities of iodine, phosphorus, sulphur, mercury, etc. His results, instead of confirming, tended rather to disprove the law of volumes. The trouble lay in the complex nature of the molecules experimented upon, but of course this was unknown to Dumas. He finally declared that even in the case of the simple gases like volumes did not contain equal numbers of chemical atoms. ...The atomic weights determined by him with the greatest care were those of silver, potassium, sodium, lithium, lead, chlorine, bromine, iodine, sulphur, and nitrogen."
Quote Details
Added by wikiquote-import-bot
Unverified quote
0 likes
Original Language: English
Available Languages (1)
Sources
Francis Preston Venable, History of Chemistry (1922) pp.75-77
https://en.wikiquote.org/wiki/Iodine
Revision History
No revisions have been submitted for this quote.
Categories
Iodine
20 quotes on TrueQuotesView all quotes by Iodine →
Related Quotes
"A French saltpetre manufacturer, Courtois, in 1811 discovered a strange substance in the soda obtained from sea plant…"
"Laurent, in 1837, striving after the real truth of substitution, had pictured the organic molecule as a prism, the an…"
"From this time oxygen began to be conventionally spoken of as the "supporter of combustion," and substances which bur…"
"Gay-Lussac was one of the most brilliant of the French chemists, and spent his whole life in research. His principal …"
"In 1812 [Humphry Davy's] Elements of Chemical Philosophy was published, and next year he travelled on the Continent. …"
"Berthollet's conclusion that chlorine is oxymuriatic acid was universally accepted until Gay-Lussac and Thénard in 18…"
"Never have experiments been conducted with greater care, caution, and exactitude than those of Stas. It is said that …"
"Meyer published along with [Paul] Jacobson a "Text book of Organic Chemistry" [Lehrbuch der Organischen Chemie], whic…"
"Curious relations, triads and octaves, were discovered to exist among the atomic weights of substances possessing sim…"
"In developing his ideas of nuclei which were used as a basis of classification in Gmelin's large Handbook of Chemistr…"