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A source of fluorine
Answer for the clue "A source of fluorine ", 8 letters:
cryolite
Alternative clues for the word cryolite
Word definitions for cryolite in dictionaries
Wikipedia
Word definitions in Wikipedia
Cryolite ( Na Al F , sodium hexafluoroaluminate ) is an uncommon mineral identified with the once large deposit at Ivigtût on the west coast of Greenland , depleted by 1987. It was historically used as an ore of aluminium and later in the electrolytic processing ...
WordNet
Word definitions in WordNet
n. a white mineral consisting of fluorides of aluminum and sodium; a source of fluorine [syn: Greenland spar ]
Wiktionary
Word definitions in Wiktionary
n. (label en mineral) The mineral sodium aluminium fluoride (Na 3 AlF 6 ).
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Cryolite \Cry"o*lite\ (kr[imac]"?-l?t), n. [Gr. kry`os icy cold, frost + -lite: cf. F. cryolithe.] (Min.) A fluoride of sodium and aluminum, found in Greenland, in white cleavable masses; -- used as a source of soda and alumina.
Usage examples of cryolite.
Steel-hulled ships would make it safer to fetch Jamaican bauxite or Greenland cryolite.
Sam had been able to trade iron weapons for bauxite, cryolite, cinnabar and platinum.
Thomsen decomposed cryolite with calcium hydroxide into calcium fluoride and sodium aluminate.
The workers at the cryolite quarry have a sparkle in their eyes, the industrial tycoons that earn the dough have a sparkle in their eyes, the Greenlandic cleanup staff have a sparkle in their eyes, and the blue fjords of Greenland are full of reflections and flashes of sunshine.
Thomsen decomposed cryolite with calcium hydroxide into calcium fluoride and sodium aluminate.
If it drops below 1-2%, the pot voltage rises, and the cryolite is itself electrolyzed ("anode effect").
Also, the moisture in the air reacts with the cryolite to form sodium fluoride, hydrofluoric acid, and alumina, thus further worsening the ratio.
Aurbach, Nonaqueous Electrochemistry, 503) A typical electrolyte is 2-8% alumina, 5-7% calcium fluoride, 5-7% excess aluminum fluoride, 0-7% lithium fluoride, and 80-85% cryolite.
However, bear in mind that sodium carbonate, while a very important industrial chemical, can be made not only by the Thomsen cryolite process, but also by both the earlier Le Blanc process (1791) and the later Solvay process, both described in Grantville encyclopedias.