Also found in: Dictionary, Thesaurus, Medical.



compounds of tellurium with electropositive elements; salts of hydrotelluric acid, H2Te. Tellurides are analogues of sulfides and selenides. Alkali metals form with tellurium water-soluble tellurides of the general formula Me2Te, as well as polytellurides (for example, Na3Te2); alkaline-earth metals react with tellurium to form tellurides of the general formula MeTe. Tellurides of transition metals from groups IV-VIII of the periodic system are of variable composition; these compounds are insoluble in water and are decomposed by strong acids.

Tellurides occur in nature in the form of the numerous but extremely rare tellurium minerals. They are synthesized by, for example, the fusion of the components in an inert medium or the reaction of hydrogen telluride with metals or salts of metals. The tellurides of most elements have semiconductor properties. Tellurides are used in manufacturing photocells, infrared detectors, thermoelectric generators, and refrigeration thermoelements; they are also used as high-temperature lubricants. Tellurides of alkali metals are used in processes for producing tellurium.


Chizhikov, D. M., and V. P. Schastlivyi. Tellur i lelluridy. Moscow, 1966.
Khal’kogenidy, fasc. 3. Kiev, 1974.


References in periodicals archive ?
Bismuth telluride, still state-of-the-art after 40 years, has a ZT of about 1.
Hafnium telluride, zirconium telluride, and other pentatellurides are candidates for low-temperature operation, he says.
For a brief period in the late 1970s and early 1980s tellurium and tellurium oxide were produced as byproducts from the mine's own tellurides and purcnhased tellurium-rich residues.
Telluride float tails go to sulphide flotation which is carried out at pH 9.
Telluride is a little livelier than Crested Butte but also a touch more straight-laced.
Telluride is surrounded by peaks and offers a true mountain experience for all, no matter your ability.
Rubadeau implemented IMAP in Telluride in 1999 with only the most at-risk and most gifted students.
After 30 years of community perseverance and dedication, we have made the dream of Prospect Bowl a reality," said Johnnie Stevens, chief operating officer for the Telluride Ski & Golf Company (Telski).