cryolite


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  • noun

Synonyms for cryolite

a white mineral consisting of fluorides of aluminum and sodium

References in periodicals archive ?
Construction of plants for production of cryolite and aluminum fluoride was started in 2008, but the financial crisis has not allowed the aluminum company to complete it.
Belonging to another than typical form morphologic and ecological group is has the possibility to inhabit the same biotopes [8], but in conditions of cryolite zone of Yakutia both forms are being observed only in flood land cenosis and rarely in watersheds [11].
The cryolite video experiments followed a similar setup to the gelatin experiments.
Cryolite has many properties which make it an ideal cryogenic insulation: It is free flowing which eliminates voids in cold box applications, is heat resistant, has good availability, is chemically inert and K value stable and does not change with time.
This has certainly been the case for the Louisiana sugarcane industry where the use of insecticides began with the botanical compound ryania and the inorganic compound cryolite, advanced to the organochlorines and then organophosphates, was then followed by the pyrethroids, and currently the insect growth regulators (IGR) (Hensley 1971; Rodriguez et al.
According to details, Falcon Abrasives Private Limited, the manufacturer of Abrasives Cloth Sheet, Belts/Roll, Sand Paper, Fiber Disc and Buffering Paper has requested the NTC for reduction of customs duty and sales tax on import of its raw materials, inputs including water proof base paper, brown fused aluminium oxide, phenol crystal, BYK-346, fine milled cryolite, vulcanized fibre, coupling agent and kraft paper used by the applicant to compete with imported products, said a statement issued by the NTC here on Monday.
Three tenders requesting international offers via agents for the supply of (a) 3,000 metric tons tar pitch, (b) 17,000 combo bags, also (c) 100 metric tons artificial cryolite.
To arrive at his figures, Hodge cited a classic study of the effects of fluoride among cryolite workers by a European researcher, Kaj Roholm, and published in 1937.
Rich cryolite mines, necessary for the production of aluminum, required protection.
The Company also has three aluminium powder metallurgy plants, and produces cryolite, aluminium fluoride and cathodes.
The remaining cryolite slag (dross) is removed from the surface and the molten composites were cast into a mold.
The European Chemicals Agency (ECHA), responsible for managing the new system known as the CLP (Classification, Labelling and Packaging) Regulation, launched a public consultation(1), on 4 November, relating to a proposal for the harmonisation at European level of the classification and labelling of two substances: hexabromocyclododecane (HBCDD, proposed by Sweden) and cryolite (proposed by Germany).
Cryolite (Na3AlF6, sodium hexafluoroaluminate) is an uncommon mineral identified with the once large deposit at IvigtE[c]t on the west coast of Greenland, which ran out in 1987.
The process involves dissolving alumina in molten cryolite.
Aluminium is currently produced through electro-deposition, where the alumina is dissolved in a molten cryolite bath at 1000[degrees]C and an electric current is applied to separate aluminium from oxygen,' Dr Rodopoulos says.