soluble in water and nitric acid; insoluble in ethanol, ether and CS2
Magnetic susceptibility (χ)
−79.4·10−6 cm3/mol
Thermochemistry
Std enthalpy of formation (ΔfH⦵298)
-173.0 kJ/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
oxidizer
NFPA 704 (fire diamond)
3
0
0
OX
Related compounds
Other anions
iodine pentafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Chemical compound
Fresh iodine pentoxide
Iodine pentoxide is the chemical compound with the formula I2O5. This iodine oxide is the anhydride of iodic acid, and the only stable oxide of iodine. It is produced by dehydrating iodic acid at 200 °C in a stream of dry air:[1]
2HIO3 → I2O5 + H2O
^ abcGreenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 851–852. ISBN 978-0-08-037941-8.
^Patnaik, P. (2002). Handbook of Inorganic Chemicals. McGraw-Hill. ISBN 0-07-049439-8.
Iodinepentoxide is the chemical compound with the formula I2O5. This iodine oxide is the anhydride of iodic acid, and the only stable oxide of iodine...
two stable oxides which are isolatable in bulk, iodine tetroxide and iodinepentoxide, but a number of other oxides are formed in trace quantities or have...
tetrafluoride, or chloryl fluoride, resulting iodine pentafluoride, which also reacts with iodinepentoxide, giving iodine(V) oxyfluoride, IOF3. A few other less...
the iodinepentoxide further decomposes, giving a mix of iodine, oxygen and lower oxides of iodine. Iodic acid can be produced by oxidizing iodine I2 with...
Iodine compounds are compounds containing the element iodine. Iodine can form compounds using multiple oxidation states. Iodine is quite reactive, but...
liquid. It can be made from the elements at low temperature, or from iodinepentoxide and hydrogen chloride. It reacts with many metal chlorides to form...
Iodine pentafluoride is an interhalogen compound with chemical formula IF5. It is one of the fluorides of iodine. It is a colorless liquid, although impure...
pressure. H5IO6 ⇌ HIO4 + 2 H2O Further heating to around 150 °C gives iodinepentoxide (I2O5) rather than the expected anhydride diiodine heptoxide (I2O7)...
low-temperature decomposition of bromine dioxide in a vacuum. It oxidises iodine to iodinepentoxide and benzene to 1,4-benzoquinone; in alkaline solutions, it gives...
compound of iodine, fluorine, and oxygen with the chemical formula IOF3. Synthesis of iodosyl trifluoride can be done by a reaction of iodinepentoxide with...
be replaced by metals or bases. pentoxide Any binary compound containing five atoms of oxygen, e.g. iodinepentoxide (I 2O 5). pentyl An alkyl functional...
Schuetze reagent, also written as Schütze reagent, is made up of iodinepentoxide (I2O5) and sulfuric acid on granular silica gel. It is used to convert...
trihydrate can be obtained by reacting hydrated zirconium oxide and iodinepentoxide (1.4~3.3% concentration) in water. Its basic salt Zr(OH)n(IO3)4−n is...
low-temperature decomposition of bromine dioxide in a vacuum. It oxidises iodine to iodinepentoxide and benzene to 1,4-benzoquinone; in alkaline solutions, it gives...
since it is an oxidant with powerful dehydrating properties. Phosphorus pentoxide is a notable exception in that it is not dehydrated by sulfuric acid but...
Dibromine pentoxide is the chemical compound composed of bromine and oxygen with the formula Br2O5. It is a colorless solid that is stable below −20 °C...
chlorine perchlorate, Cl2O4 or ClOClO3, chlorine (I,VII) oxide dichlorine pentoxide, Cl2O5 or ClOOClO3, is hypothetical dichlorine hexoxide or chloryl perchlorate...
aluminium alloys. The most important industrial vanadium compound, vanadium pentoxide, is used as a catalyst for the production of sulfuric acid. The vanadium...
JSTOR 1541903. "Occupational Safety and Health Guideline for Vanadium Pentoxide Dust". www.osha.gov. Archived from the original on May 3, 2013. Retrieved...
reactive dinitrogen pentoxide (N2O5) is the anhydride of nitric acid, and can be made from it by dehydration with phosphorus pentoxide. It is of interest...
of perchloric acid in the presence of the dehydrating agent phosphorus pentoxide: 2 HClO4 + P4O10 → Cl2O7 + H2P4O11 The chlorine(VII) oxide can be distilled...
the metal oxidation states +2, +4, and +5. The most stable is the white pentoxide Pa2O5, which can be produced by igniting protactinium(V) hydroxide in...
solubilized due to the formation of polyoxotantalate species. Tantalum pentoxide (Ta2O5) is the most important compound from the perspective of applications...
with a hammer. It burns in oxygen to form arsenic trioxide and arsenic pentoxide, which have the same structure as the more well-known phosphorus compounds...
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