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Sodium hexafluoroaluminate

Aluminium is not found free but its compounds are so widespread that it is the most abundant metal in the earth s crust. Aluminosilicates such as clay, kaolin (or china clay), mica and feldspar are well known and widely distributed. The oxide. AI2O3. occurs (anhydrous) as corundum and emery, and (hydrated) as bauxite. Cryolite. Na,AlF. (sodium hexafluoroaluminate). is found extensively in Greenland. [Pg.141]

Cryolite, see Sodium hexafluoroaluminate Cryptohalite, see Ammonium hexafluorosilicate Cupric and cuprous, see under Copper Cuprite, see Copper(I) oxide... [Pg.273]

Of the fluoroaluminates known, cryoflte, ie, sodium hexafluoroaluminate [15096-52-2], Na AlF, has been an integral part of the process for production of aluminum. Recently, the mixtures of potassium tetrafluoroaluminate [14484-69-6], KAIF, and potassium hexafluoroaluminate [13575-52-5], K AlFg, have been employed as bra2ing fluxes in the manufacture of aluminum parts. [Pg.140]

Sodium-2,4-dichlorophenoxyethyl sulphate Sodium hexafluoroaluminate Sodium hydroxide Stibine... [Pg.370]

The most intensively investigated reaction with complex aluminum fluorides has been the reaction of sodium hexafluoroaluminate with tetrachloromethane (1), which does not run with high selectivity.48,49 Compounds 2-6 have been determined but the conversion rate is low.49... [Pg.635]

Thus the complex fluorides of aluminum do not offer any advantages over other fluorinating agents in halogen-exchange reactions and so they have not found application in industry, although sodium hexafluoroaluminate is produced in large quantities. [Pg.635]

CRYOLITE ENT 24,984 KRYOLITH (GERMAN) NATRIUMALUMINUMFLUORID (GERiMAN) NATRIUMHEXAFLUOROALUMINATE (GERMAN) SODIUM ALUMINOFLUORIDE SODIUM ALUMINUM FLUORIDE SODIUM HEXAFLUOROALUMINATE VILLIAUMITE... [Pg.1253]

Aluminium oxide has a very high melting point, so a more easily melted compound of aluminium, sodium hexafluoroaluminate(lll), called cryolite (Na3AIF6), was added. What will be the effect on the melting point of aluminium oxide of adding this impurity ... [Pg.104]

The electrolyte essentially consists of sodium hexafluoroaluminate (synthetic cryolite) with added aluminum fluoride and lithium fluoride. The latter is formed in situ from lithium carbonate. These additives make up 2 to 5% of the bath content and result in a reduced melt temperature, an increase in the melt conductivity, an... [Pg.248]

Problem 2. Now, we want to give the students the formula of the sodium hexafluoroaluminate compound and to ask them definitions of some important ideas concerning complexes the right answers are marked with an arrow. [Pg.238]

Plan We use the rules that were presented above and refer to Tables 22.6 and 22.7. Solution (a) The complex ion is [AlFs] . There are six Qiexa-) F ions (fluoro) as ligands, so we have hexafluoro. The complex ion is an anion, so the ending of the metal ion (aluminum) must be changed to -ate hexafluoroaluminate. Aluminum has only the +3 oxidation state, so we do not use a Roman numeral. The positive counter ion is named first and separated from the anion by a space sodium hexafluoroaluminate. [Pg.745]

Synonyms/Trade Names Cryocide. Cryodust. Cryolite. Sodium hexafluoroaluminate ... [Pg.281]

Sodium fluoroaluminate CAS 15096-52-3 EINECS/ELINCS 215-560-3 Synonyms Aluminum sodium fluoride Cryolite Sodium aluminofluoride Sodium aluminum fluoride Sodium aluminum hexafluoride Sodium fluoaluminate Sodium hexafluoroaluminate... [Pg.4025]

Sodium 2,4-hexadienoate Sodium (E,E)-hexa-2,4-dienoate. See Sodium sorbate Sodium hexafluoroaluminate. See Sodium fluoroaluminate... [Pg.4029]

Grjotheim K, Matiasovsky K, Fellner P, Silny A (1971) Electrolytic deposition of silicon and of silicon alloys. I. Physicochemical properties of the sodium hexafluoroaluminate-aluminum oxide-silica mixtures. Can Met Quart 10 79-82... [Pg.1965]

The Hall-Heroult process is the commercial method for producing aluminum by the electrolysis of a molten mixture of aluminum oxide in cryolite, NajAlF. Originally, the process used natural cryolite. Today, the Hall—Heroult process uses synthetic cryolite, or sodium hexafluoroaluminate, produced by reacting aluminum hydroxide from the Bayer process with sodium hydroxide and hydrofluoric acid. [Pg.531]

More and more, however, other solvents are coming into use in the laboratory and in industry. Aside from organic solvents such as alcohols, acetone, and hydrocarbons, which have been in use for many years, industrial processes use such solvents as sulfuric acid, hydrogen fluoride, ammonia, molten sodium hexafluoroaluminate (cryolite), various other ionic liquids (Welton, 1999), and liqnid metals, lander and Lafrenz (1970) cite the industrial use of bromine to separate caesium bromide (sol y 19.3g/100g bromine) from the much less soluble rubidium salt. The list of solvents available for preparative and analytical purposes in the laboratory now is long and growing, and though water will still be the first solvent that comes to mind, there is no reason to stop there. [Pg.2]

See other pages where Sodium hexafluoroaluminate is mentioned: [Pg.364]    [Pg.858]    [Pg.883]    [Pg.884]    [Pg.1882]    [Pg.304]    [Pg.787]    [Pg.25]    [Pg.1087]    [Pg.740]    [Pg.1039]    [Pg.732]    [Pg.1025]    [Pg.252]    [Pg.208]    [Pg.208]    [Pg.465]    [Pg.802]    [Pg.715]    [Pg.814]    [Pg.1241]    [Pg.778]    [Pg.1150]    [Pg.812]    [Pg.1238]    [Pg.732]    [Pg.1022]   
See also in sourсe #XX -- [ Pg.281 ]

See also in sourсe #XX -- [ Pg.802 ]

See also in sourсe #XX -- [ Pg.211 ]



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Hexafluoroaluminates

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