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Additional
chalcogenide
English Wikipedia - The Free Encyclopedia
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Chalcogenide
A
chalcogenide
is a chemical compound consisting of at least one
chalcogen
anion
and at least one more
electropositive
element. Although all
group 16 elements
of the periodic table are defined as chalcogens, the term chalcogenide is more commonly reserved for
sulfides
,
selenides
, and
telluride
s, rather than
oxides
. Many metal ores exist as chalcogenides.
Photoconductive
chalcogenide glasses
are used in
xerography
. Some pigments and catalysts are also based on chalcogenides. The metal dichalcogenide
MoS
2
is a common
solid lubricant
.
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