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Properties of substance:
iodine(V) oxide
Group of substances:
inorganic
Physical appearance:
white crystals
Empirical formula (Hill's system for organic substances):
I
2
O
5
Structural formula as text:
I2O5
Molar/atomic mass: 333.81
Decomposition temperature (°C):
300
Solubility (g/100 g of solvent):
carbon disulphide
: insoluble [
Ref.
]
chloroform
: insoluble [
Ref.
]
diethyl ether
: insoluble [
Ref.
]
ethanol
: insoluble [
Ref.
]
water
: 187 (12°C) [
Ref.
]
Hygroscopic:
yes
Density:
4.8 (25°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
3HIO
3
→ I
2
O
5
* HIO
3
+ H
2
O
2I
2
O
5
* HIO
3
→ 4I
2
O
5
+ H
2
O
Reactions:
[
Ref.1
]
2I
2
O
5
→ 2I
2
+ 5O
2
[
Ref.1
]
I
2
O
5
+ H
2
O → 2HIO
3
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-183.3 (s)
References:
Гринвуд Н., Эрншо А. Химия элементов. - Т.2. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 196-197 [Russian]
Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 283 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 65 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru
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