Main page (Russian) Search in database (English)

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):

N2O

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 (nm3): 0.0031

Density:

1.226 (-89°C, g/cm3)
0.0019778 (20°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1]
    NH4NO3 → N2O + 2H2O
  2. [Ref.1]
    4Zn + 10HNO3 (20%) → 4Zn(NO3)2 + N2O + 5H2O

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:

N2O + 10H+ + 8e- → 2NH4+ + H2O, E = 0.647 V (water, 25°C)
N2O + 2H+ + 2e- → N2 + H2O, 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 ΔfH0 (298.15 K, kJ/mol):

82 (g)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

104.1 (g)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

219.9 (g)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

38.6 (g)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

6.52

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

16.56

Critical temperature (°C):

36.43

Critical pressure (MPa):

7.255

Critical density (g/cm3):

0.453

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1135-1142
  2. Багал Л.И. Химия и технология инициирующих взрывчатых веществ. - М., 1975. - pp. 178-184 [Russian]
  3. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 106 [Russian]
  4. Вредные химические вещества: Неорганические соединения элементов V-VIII групп. Справочник. - Л., 1989. - pp. 31 [Russian]
  5. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 414-415 [Russian]
  6. Закусов В.В. Фармакология. - М.: Медгиз, 1960. - pp. 45-46 [Russian]
  7. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 413-414, 418-419 [Russian]
  8. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 50 [Russian]
  9. Спицын В.И., Мартыненко Л.И. Неорганическая химия. - Ч.1. - М.: ИМУ, 1991. - pp. 130 [Russian]
  10. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 330, 916-920 [Russian]
  11. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 12-13 [Russian]
  12. Успехи химии. - 2001. - Т.70, №2. - pp. 107-121 [Russian]
  13. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 59-60 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru