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oxyiodide

Oxyiodide is a term that has appeared in some chemical literature to describe compounds that combine iodine with oxide in a single species. However, there is no widely accepted definition of oxyiodide as a formal class in modern inorganic nomenclature. In current iodine–oxygen chemistry, the established terms are hypoiodite (IO−), iodite (IO2−), iodate (IO3−), and periodate (IO4−), along with neutral iodine oxides such as I2O5. When encountered, oxyiodide is often used loosely to refer to salts containing iodine–oxygen units, or to iodate/periodate species, but this usage is not standardized.

Examples of well-defined iodine–oxygen compounds include potassium iodate (KIO3), sodium iodate (NaIO3), and sodium periodate (NaIO4).

Because the label "oxyiodide" lacks a single authoritative definition, readers should seek clarification from the source

See also: iodate, periodate, hypoiodite, iodine oxide.

These
oxoanions
are
used
as
oxidizing
agents
in
chemistry
and
serve
as
reagents
in
analytical
and
organic
synthesis.
The
iodine
in
iodate
is
in
the
+5
oxidation
state,
while
in
periodate
it
is
+7;
iodide
(I−)
is
the
−1
state,
illustrating
the
redox
versatility
of
iodine
in
these
species.
when
the
term
is
used,
and
prefer
standard
terms
such
as
iodate,
periodate,
iodide,
or
iodine
oxide
for
precise
descriptions.