Main page (Russian) Search in database (English)

Properties of substance:

nitrogen(II) oxide

Synonyms:

nitric oxide

Group of substances:

inorganic

Physical appearance:

colorless gas

Empirical formula (Hill's system for organic substances):

NO

Structural formula as text:

NO

Molar/atomic mass: 30.01

Melting point (°C):

-163.7

Boiling point (°C):

-151.7

Decomposition temperature (°C):

1100-1200

Solubility (g/100 g of solvent):

benzene: 0.042 (24.6°C) [Ref.]
carbon disulphide: soluble [Ref.]
carbon tetrachloride: 0.027 (19.6°C) [Ref.]
dimethylsulfoxide: insoluble [Ref.]
ethanol: 0.036 (20°C) [Ref.]
nitrobenzene: 0.02 (20°C) [Ref.]
sulfuric acid: soluble [Ref.]
water: 0.0069 (15°C) [Ref.]
water: 0.0063 (20°C) [Ref.]
water: 0.0058 (25°C) [Ref.]
water: 0.00502 (35°C) [Ref.]
water: 0.0035 (100°C) [Ref.]

Properties of solutions:

1% (wt.), solvent - nitrogen dioxide
  Freezing point (°C) = -12.6
  Boiling point (°C) = 18.
25% (wt.), solvent - nitrogen dioxide
  Freezing point (°C) = -55.
  Boiling point (°C) = 2.

Interatomic distances and bond angles:

Interatomic distances (in pm): 115 (N-O) [gas]

Numerical data:

Polarizability of molecules (nm3): 0.0018
Magnetic susceptibility (mm3/kg): 48.7

Density:

1.269 (-152°C, g/cm3)
0.0013402 (0°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1]
    3Zn + 8HNO3 (40%) → 3Zn(NO3)2 + 2NO + 4H2O
  2. [Ref.1]
    3Cu + 8HNO3(30%) + 14H2O → 3Cu(NO3)2 * 6H2O + 2NO
  3. [Ref.1]
    N2 + O2 → 2NO
  4. [Ref.1]
    3Hg + 8HNO3 (30%) → 3Hg(NO3)2 + 2NO + 4H2O

Reactions:

  1. [Ref.1]
    C2H5OOC2H5 + 2NO → 2C2H5ONO
  2. [Ref.1]
    2NO + O2 → 2NO2
  3. [Ref.1, Ref.2]
    2NO + Cl2 → 2NOCl

Electrode potential:

2NO + 4H+ + 4e- → N2 + 2H2O, E = 1.678 V (water, 25°C)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

90.25 (g)

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

210.6 (g)

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

29.9 (g)

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

2.3

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

13.77

Critical temperature (°C):

-94

References:

  1. Binneweis M., Milke E. Thermochemical Data of Elements and Compounds. - 2ed, 2002. - pp. 695
  2. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1142-1144
  3. Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 107-108 [Russian]
  4. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 416-418 [Russian]
  5. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 226 [Russian]
  6. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 414, 419-421, 426-427 [Russian]
  7. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 50 [Russian]
  8. Реми Г. Курс неорганической химии. - Т.1. - М., 1963. - pp. 638-639 [Russian]
  9. Справочник азотчика. - М.: Химия, 1987. - pp. 13-14 [Russian]
  10. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 330, 921 [Russian]
  11. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 12-13 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru