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Properties of substance:
nitrogen(I) oxide
Synonyms:
nitrous oxide
Group of substances:
inorganic
Physical appearance:
colorless gas
Empirical formula (Hill's system for organic substances):
N
2
O
Structural formula as text:
N2O
Molar/atomic mass: 44.01
Melting point (°C):
-90.7
Boiling point (°C):
-88.7
Decomposition temperature (°C):
600
Solubility (g/100 g of solvent):
acetic acid
: 0.91 (20°C) [
Ref.
]
acetone
: 1.5 (20°C) [
Ref.
]
aniline
: 0.29 (20°C) [
Ref.
]
benzaldehyde
: 0.59 (20°C) [
Ref.
]
benzene
: 0.75 (25°C) [
Ref.
]
bromoethane
: 0.38 (20°C) [
Ref.
]
carbon tetrachloride
: 0.52 (20°C) [
Ref.
]
chloroform
: 0.74 (20°C) [
Ref.
]
cyclohexanol
: 0.048 (26°C) [
Ref.
]
diethyl ether
: soluble [
Ref.
]
ethanol
: 0.75 (20°C) [
Ref.
]
i-amyl alcohol
: 0.6 (20°C) [
Ref.
]
methanol
: 0.83 (20°C) [
Ref.
]
methyl acetate
: 1.22 (25°C) [
Ref.
]
monochlorbenzene
: 0.56 (20°C) [
Ref.
]
oxygen liquid
: 0.0038 (-195.2°C) [
Ref.
]
oxygen liquid
: 0.02 (-182.9°C) [
Ref.
]
oxygen liquid
: 0.0096 (-182.8°C) [
Ref.
]
pyridine
: 0.72 (20°C) [
Ref.
]
sulfuric acid
: soluble [
Ref.
]
water
: 0.257 (0°C) [
Ref.
]
water
: 0.174 (10°C) [
Ref.
]
water
: 0.125 (20°C) [
Ref.
]
water
: 0.106 (25°C) [
Ref.
]
water
: 0.093 (30°C) [
Ref.
]
water
: 0.082 (35°C) [
Ref.
]
Numerical data:
Polarizability of molecules (nm
3
): 0.0031
Density:
1.226 (-89°C, g/cm
3
)
0.0019778 (20°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
NH
4
NO
3
→ N
2
O + 2H
2
O
[
Ref.1
]
4Zn + 10HNO
3
(20%) → 4Zn(NO
3
)
2
+ N
2
O + 5H
2
O
Vapour pressure (Torr):
1 (-144°C)
10 (-129°C)
100 (-110°C)
1520 (-74.7°C)
3800 (-54.5°C)
7600 (-36.4°C)
15200 (-14.9°C)
30400 (10.8°C)
45600 (28.3°C)
Electrode potential:
N
2
O + 10H
+
+ 8e
-
→ 2NH
4
+
+ H
2
O, E = 0.647 V (water, 25°C)
N
2
O + 2H
+
+ 2e
-
→ N
2
+ H
2
O, E = 1.766 V (water, 25°C)
Permittivity (dielectric constant):
1.00103 (25°C)
Dipole moment (D):
0.16 (20°C)
Viscosity (mPa·s):
0.0137 (0°C)
0.0183 (100°C)
0.0225 (200°C)
0.0303 (400°C)
Speed sound (m/s):
263 (0°C, aggregative state - gas)
273 (19°C, aggregative state - gas)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
82 (g)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
104.1 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
219.9 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
38.6 (g)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
6.52
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
16.56
Critical temperature (°C):
36.43
Critical pressure (MPa):
7.255
Critical density (g/cm
3
):
0.453
References:
Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1135-1142
Багал Л.И. Химия и технология инициирующих взрывчатых веществ. - М., 1975. - pp. 178-184 [Russian]
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 106 [Russian]
Вредные химические вещества: Неорганические соединения элементов V-VIII групп. Справочник. - Л., 1989. - pp. 31 [Russian]
Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 414-415 [Russian]
Закусов В.В. Фармакология. - М.: Медгиз, 1960. - pp. 45-46 [Russian]
Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 413-414, 418-419 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 50 [Russian]
Спицын В.И., Мартыненко Л.И. Неорганическая химия. - Ч.1. - М.: ИМУ, 1991. - pp. 130 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 330, 916-920 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 12-13 [Russian]
Успехи химии. - 2001. - Т.70, №2. - pp. 107-121 [Russian]
Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 59-60 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru