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Type your anseName: Fluorine
Type: Halogen
Density @ 293 K: 0.001696 g/cm3
Discovery of Fluorine
In 1530 Georgius Agricola described the use of the mineral fluorspar in metal refining. Fluorspar (which we now know is mainly calcium fluoride) was very useful because it combined with the unwanted parts of metal ores, allowing the pure metal to flow and be collected.
Fluorine had not yet been discovered and the 'fluor' in fluorspar came from the Latin word 'fluere', meaning to flow, because this is what it allowed metals to do. The element name fluorine ultimately came from the 'fluor' in fluorspar.
Several chemists carried out experiments on fluorspar in the early 1800s including Gay Lussac, Louis Jacques Thenard, Humphry Davy, Carl Wilhelm Scheele and Joseph Priestley.
Often they produced what they called fluoric acid - now named hydrofluoric acid - a highly reactive and potentially deadly acid. Even small splashes of this acid on skin can be fatal.
Several early attempts to isolate fluorine led to blindings and fatalities. Humphrey Davy wrote: "[fluoric acid] is a very active substance, and must be examined with great caution.
In 1809 Andre-Marie Ampere proposed that fluoric acid was a compound of hydrogen and an unknown element. He exchanged letters with Humphry Davy and in 1813 Davy announced the discovery of the new element fluorine, giving it the name suggested to him by Ampere.
Davy wrote: "... it appears reasonable to conclude that there exists in the fluoric compounds a peculiar substance, possessed of strong attractions for metallic bodies and hydrogen... it may be denominated fluorine, a name suggested to me by M. Ampere."
Fluorine was finally isolated in 1886 by Henri Moissan - whose own work was interrupted four times by serious poisoning caused by the element he was pursuing.
Moissan isolated fluorine by electrolysis of dry potassium hydrogen fluoride and anhydrous hydrofluoric acid. To limit corrosion, he built a platinum container and the electrolytic solution was cooled to -23 oF (-31 oC.) The stoppers were made out of fluorite (a more modern name for our old friend fluorspar, which we began this section with). Fluorine was produced at the positive electrode.
Henri Moissan received the 1906 Nobel Prize in Chemistry for his achievement.
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Where was fluorine discovered?
Owing to its extreme reactivity, elemental fluorine was not isolated until many years after the characterization of fluorite. Progress in isolating elemental fluorine was slowed because it could be prepared only electrolytically and even then under stringent conditions, since the gas attacks many materials. In 1886, the isolation of elemental fluorine was reported by Henri Moissan after almost 74 years of effort by other chemists
What is the formula for this covalent compound iodine pentafluoride?
Iodine pentafluoride, IF5, is a fluoride of iodine. It is a colourless or yellow liquid with a density of 3250 kg m−3. It was first synthesized by Henri Moissan in 1891 by burning solid iodine in fluorine gas.[3] This exothermic reaction is still used to produce iodine pentafluoride, although the reaction conditions have been improved.[4][5] An alternative IUPAC name is pentafluoro-λ5-iodane.
Who discovered radiometric dating?
Take a look at this:"In 1896 Henri Becquerel and Marie Curie discovered that certain isotopes undergo spontaneous radioactive decay, transforming into new isotopes. Atoms of a parent radioactive isotope randomly decay into a daughter isotope. Over time the number of parent atoms decreases and the number of daughter atoms increases. Rutherford and Soddy (1902) discovered that the rate of decay of a radioactive isotope depends on the amount of the parent isotope remaining. Later it was found that half of the parent atoms occurring in a sample at any time will decay into daughter atoms in a characteristic time called the half-life."from http://myweb.cwpost.liu.edu/vdivener/notes/radiometric_dating.htmThese discoveries lead to the practical application of radiometric dating so you could probably credit the discovery to these individuals.
What did Henri becquerel discover about uranium?
Antoine Henri Becquerel discovered in 1896 the natural radioactivity of uranium. The emitted radiations have effect on a photographic plate, the emulsion was decomposed under the uranium sample.
What is a hurricane and what are different names for a hurricane?
The correct term for hurricanes is tropical cyclone. This is the generic term that covers tropical storms of both the northern and southern hemisphere. Cyclones in the Americas are called hurricanes, and cyclones in Asian waters and the China Sea are called typhoons. They are generally just called cyclones around Australia, the Western Pacific, the Indian Ocean and the south Pacific.
What are some Historical facts about fluorine?
Discovered it by Joseph Henri Moissan
In what country was fluorine discovered?
Fluorine was discovered in France in 1886 by the discoverer Joseph Henri Moissan.
What is Joseph Henri moissan famous for?
Joseph Henri Moissan was famous for discovering fluorine.
Who found flourine?
Fluorine was discovered by a chemist named Joseph Henri Moissan in 1886.
Why was fluorine discovered?
Fluorine was first isolated by Henri Moissan in 1886.
What is the place of birth for fluorine?
Fluorine was discovered by Henri Moissan in 1886 in France.
Who discovered Flourine and when?
Joseph Henri Moissan in 1886.
Where was fluorine discovered?
Owing to its extreme reactivity, elemental fluorine was not isolated until many years after the characterization of fluorite. Progress in isolating elemental fluorine was slowed because it could be prepared only electrolytically and even then under stringent conditions, since the gas attacks many materials. In 1886, the isolation of elemental fluorine was reported by Henri Moissan after almost 74 years of effort by other chemists
How was the element fluorine discovered?
There is no element 'flourine' - it's 'fluorine'. Fluorine was discovered by Henri Moissan in 1886 who perfected a process using electrolysis to produce fluorine from fluorite, a mineral discovered in 1530. Fluorite and fluorine are not the same.
Who discoverd florine?
Joseph Henri Moissan
Which gaseous element was first isolated in 1886 by Henri Moissan?
Fluorine
How discoverd flourine?
Fluorine was isolated for the first time by Henri Moissan in 1886.
