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Properties of substance:

oxygen

Group of substances:

inorganic

Physical appearance:

colorless gas

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

O2

Structural formula as text:

O2

Molar/atomic mass: 31.999

Melting point (°C):

-219

Boiling point (°C):

-183

Solubility (g/100 g of solvent):

1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorooctane: 0.034 (16°C) [Ref.]
1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorooctane: 0.033 (26.02°C) [Ref.]
1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-heptadecafluorooctane: 0.031 (39.33°C) [Ref.]
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-hexadecafluorooctane: 0.03 (17.53°C) [Ref.]
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-hexadecafluorooctane: 0.03 (24.82°C) [Ref.]
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-hexadecafluorooctane: 0.029 (34.84°C) [Ref.]
1,4-dioxane: 0.01955 (25°C) [Ref.]
1-bromoheptadecafluorooctane: 0.032 (16.43°C) [Ref.]
1-bromoheptadecafluorooctane: 0.031 (24.22°C) [Ref.]
1-bromoheptadecafluorooctane: 0.029 (39.42°C) [Ref.]
1-butanol: 0.036 (0°C) [Ref.]
1-butanol: 0.0339 (25°C) [Ref.]
1-butanol: 0.03314 (50°C) [Ref.]
1-chlorohexane: 0.03586 (25°C) [Ref.]
1-decanol: 0.02536 (10°C) [Ref.]
1-decanol: 0.02508 (25°C) [Ref.]
1-decanol: 0.02495 (50°C) [Ref.]
1-octanol: 0.02854 (10°C) [Ref.]
1-octanol: 0.0278 (25°C) [Ref.]
1-propanol: 0.04839 (0°C) [Ref.]
1-propanol: 0.04476 (25°C) [Ref.]
1-propanol: 0.04183 (50°C) [Ref.]
2-hexanone: 0.03755 (25°C) [Ref.]
2-hexanone: 0.03608 (60°C) [Ref.]
2-pentanone: 0.04136 (25°C) [Ref.]
2-pentanone: 0.04229 (60°C) [Ref.]
2-propanol: 0.04332 (0°C) [Ref.]
2-propanol: 0.04167 (25°C) [Ref.]
2-propanol: 0.04034 (50°C) [Ref.]
N,N-dimethylaniline: 0.01897 (25°C) [Ref.]
N-methylformamide: 0.0042 (25°C) [Ref.]
acetone: 0.04655 (-70°C) [Ref.]
acetone: 0.0448 (-50°C) [Ref.]
acetone: 0.04423 (-30°C) [Ref.]
acetone: 0.04485 (0°C) [Ref.]
acetone: 0.367 (10°C) [Ref.]
acetone: 0.0309 (20°C) [Ref.]
acetone: 0.04597 (20°C) [Ref.]
acetone: 0.0277 (25°C) [Ref.]
acetone: 0.04841 (50°C) [Ref.]
acetonitrile: 0.01 (25°C) [Ref.]
aniline: 0.00777 (25°C) [Ref.]
benzene: 0.03288 (20°C) [Ref.]
benzene: 0.027 (25°C) [Ref.]
benzene: 0.03354 (30°C) [Ref.]
benzene: 0.03431 (40°C) [Ref.]
benzene: 0.03514 (50°C) [Ref.]
benzene: 0.03608 (60°C) [Ref.]
benzene: 0.03711 (70°C) [Ref.]
benzoic acid: 0.0132 (122.4°C) [Ref.]
bromobenzene: 0.01525 (25°C) [Ref.]
carbon disulphide: 0.01859 (25°C) [Ref.]
carbon tetrachloride: 0.02504 (0°C) [Ref.]
carbon tetrachloride: 0.02499 (20°C) [Ref.]
carbon tetrachloride: 0.0251 (60°C) [Ref.]
cyclohexane: 0.04686 (20°C) [Ref.]
cyclohexane: 0.04705 (30°C) [Ref.]
cyclohexanone: 0.02082 (20°C) [Ref.]
cyclohexanone: 0.02075 (25°C) [Ref.]
cyclohexene: 0.0406 (20°C) [Ref.]
cyclooctane: 0.03117 (20°C) [Ref.]
cyclooctane: 0.03103 (30°C) [Ref.]
decane: 0.049 (30°C) [Ref.]
decane: 0.049 (30°C) [Ref.]
diethyl ether: 0.10395 (-70°C) [Ref.]
diethyl ether: 0.08734 (-30°C) [Ref.]
diethyl ether: 0.08374 (0°C) [Ref.]
diethyl ether: 0.08361 (20°C) [Ref.]
dimethylformamide: 0.019 (25°C) [Ref.]
dimethylnitrosamine: 0.00864 (25°C) [Ref.]
dimethylsulfoxide: 0.00096 (25°C) [Ref.]
dipropyl ether: 0.05899 (20°C) [Ref.]
dipropyl ether: 0.05993 (25°C) [Ref.]
ethanol: 0.04372 (-20°C) [Ref.]
ethanol: 0.04212 (0°C) [Ref.]
ethanol: 0.0414 (10°C) [Ref.]
ethanol: 0.0204 (20°C) [Ref.]
ethanol: 0.0405 (25°C) [Ref.]
ethanol: 0.0402 (30°C) [Ref.]
ethanol: 0.03829 (70°C) [Ref.]
ethyl acetate: 0.03588 (20°C) [Ref.]
ethylbenzene: 0.03682 (25°C) [Ref.]
fluorobenzene: 0.0503 (25°C) [Ref.]
gold fused: soluble [Ref.]
heptane: 0.064 (20°C) [Ref.]
heptane: 0.066 (25°C) [Ref.]
heptane: 0.068 (30°C) [Ref.]
heptane: 0.071 (40°C) [Ref.]
hexafluorobenzene: 0.04264 (10°C) [Ref.]
hexafluorobenzene: 0.042 (20°C) [Ref.]
hexane: 0.073 (20°C) [Ref.]
hexane: 0.076 (25°C) [Ref.]
iodobenzene: 0.008 (25°C) [Ref.]
isopropylbenzene: 0.03701 (25°C) [Ref.]
m-xylene: 0.03609 (25°C) [Ref.]
methanol: 0.04506 (-20°C) [Ref.]
methanol: 0.04256 (10°C) [Ref.]
methanol: 0.0339 (20°C) [Ref.]
methanol: 0.0313 (25°C) [Ref.]
methyl acetate: 0.03556 (-70°C) [Ref.]
methyl acetate: 0.0353 (-50°C) [Ref.]
methyl acetate: 0.03598 (-20°C) [Ref.]
methyl acetate: 0.03692 (0°C) [Ref.]
methyl acetate: 0.03815 (20°C) [Ref.]
methyl acetate: 0.03886 (30°C) [Ref.]
methyl ethyl ketone: 0.04491 (25°C) [Ref.]
methyl ethyl ketone: 0.0474 (60°C) [Ref.]
methylcyclohexane: 0.05128 (20°C) [Ref.]
methylcyclohexane: 0.05197 (30°C) [Ref.]
monochlorbenzene: 0.02214 (0°C) [Ref.]
monochlorbenzene: 0.02236 (20°C) [Ref.]
monochlorbenzene: 0.02251 (30°C) [Ref.]
monochlorbenzene: 0.02352 (80°C) [Ref.]
nitric acid 100%: 0.0062 (20°C) [Ref.]
nitrobenzene: 0.01287 (25°C) [Ref.]
nonane: 0.051 (30°C) [Ref.]
o-xylene: 0.03373 (25°C) [Ref.]
octamethylcyclotetrasiloxane: 0.04677 (20°C) [Ref.]
octamethylcyclotetrasiloxane: 0.04581 (30°C) [Ref.]
octamethylcyclotetrasiloxane: 0.04494 (40°C) [Ref.]
octane: 0.06 (20°C) [Ref.]
octane: 0.059 (30°C) [Ref.]
octane: 0.059 (40°C) [Ref.]
p-xylene: 0.03528 (25°C) [Ref.]
p-xylene: 0.03521 (30°C) [Ref.]
p-xylene: 0.03515 (40°C) [Ref.]
perfluoro-n-heptane: 0.042 (14.79°C) [Ref.]
perfluoro-n-heptane: 0.039 (24.73°C) [Ref.]
perfluoro-n-heptane: 0.032 (35.2°C) [Ref.]
perfluoro-n-hexane: 0.049 (14.25°C) [Ref.]
perfluoro-n-hexane: 0.044 (18.24°C) [Ref.]
perfluoro-n-hexane: 0.04 (25.5°C) [Ref.]
perfluoro-n-hexane: 0.033 (33.5°C) [Ref.]
perfluoro-n-nonane: 0.038 (15.13°C) [Ref.]
perfluoro-n-nonane: 0.036 (24.89°C) [Ref.]
perfluoro-n-nonane: 0.032 (38.23°C) [Ref.]
perfluorodecaline (isomers mix): 0.029 (15.7°C) [Ref.]
perfluorodecaline (isomers mix): 0.028 (26.67°C) [Ref.]
perfluorodecaline (isomers mix): 0.028 (38.46°C) [Ref.]
perfluorodecaline (isomers mix): 0.027 (40.05°C) [Ref.]
perfluorotributylamine: 0.02716 (0°C) [Ref.]
perfluorotributylamine: 0.0262 (20°C) [Ref.]
platinum fused: soluble [Ref.]
propylbenzene: 0.03586 (25°C) [Ref.]
pyrrolidine: 0.02728 (25°C) [Ref.]
silver: soluble [Ref.]
tetrahydro-2H-pyran: 0.03499 (20°C) [Ref.]
tetrahydro-2H-pyran: 0.03585 (25°C) [Ref.]
tetrahydrofuran: 0.03567 (20°C) [Ref.]
tetrahydrofuran: 0.03624 (25°C) [Ref.]
tin liquid: 0.00018 (536°C) [Ref.]
tin liquid: 0.0049 (750°C) [Ref.]
toluene: 0.03188 (20°C) [Ref.]
toluene: 0.03226 (30°C) [Ref.]
toluene: 0.03261 (40°C) [Ref.]
water: 0.00699 (0°C) [Ref.]
water: 0.00543 (10°C) [Ref.]
water: 0.00443 (20°C) [Ref.]
water: 0.00404 (25°C) [Ref.]
water: 0.00373 (30°C) [Ref.]
water: 0.0033 (40°C) [Ref.]
water: 0.00299 (50°C) [Ref.]
water: 0.00252 (80°C) [Ref.]
water: 0.00246 (100°C) [Ref.]

Interatomic distances and bond angles:

Interatomic distances (in pm): 120,74 (O-O) [gas]

Numerical data:

Year of discovery: 1771
Thermal conductivity (W/m·K): 0.02465
Thermal conductivity (W/m·K): 0.147
Polarizability of molecules (nm3): 0.00157
Magnetic susceptibility (mm3/kg): 107.8
Magnetic susceptibility (mm3/kg): 240.6
Ionization Potentials (Electronvolts): 12.077

Density:

1.27 (-219°C, g/cm3)
1.14 (-183°C, g/cm3)
0.001429 (20°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1]
    2KClO3 → 2KCl + 3O2
  2. [Ref.1]
    2H2O → 2H2 + O2

Reactions:

  1. [Ref.1]
    2H2 + O2 → 2H2O
  2. [Ref.1]
    O2 + F2 → O2F2
  3. [Ref.1]
    K + O2 → KO2
  4. [Ref.1]
    4Li + O2 → 2Li2O
  5. Yeild 70%. [Ref.1]
    4HCl + O2 → 2Cl2 + 2H2O
  6. Yeild 80%. [Ref.1aster]
    4SF5Cl + 3O2 → 2SF5OOOSF5 + 2Cl2
  7. [Ref.1]
    4Nb + 5O2 → 2Nb2O5
  8. [Ref.1]
    O2 + PtF6 → O2PtF6
  9. [Ref.1]
    Au + 3F2 + O2 → O2AuF6
  10. [Ref.1]
    2BrF6[AsF6] + 2O2 → 2O2[AsF6] + 2BrF5 + F2
  11. [Ref.1]
    N2 + O2 → 2NO
  12. [Ref.1]
    2NOCl + O2 → 2NO2 + Cl2
  13. [Ref.1]
    2NO + O2 → 2NO2
  14. [Ref.1, Ref.2aster]
    2Na + O2 → Na2O2
  15. [Ref.1, Ref.2]
    K + O2 → KO2
  16. [Ref.1aster, Ref.2aster]
    4Cs + O2 → 2Cs2O
  17. [Ref.1, Ref.2]
    2SO2 + O2 → 2SO3

Half-life:

128O = 0.00058 as (2p; mass excess 32048 keV)
138O = 8.58 ms (β+ (100%); mass excess 23112 keV)
148O = 70.598 s (β+ (100%); mass excess 8007,36 keV)
158O = 122.24 s (β+ (100%); mass excess 2855,6 keV)
168O = stable (mass excess -4737,0014 keV (isotopic abundance 99,757%))
178O = stable (mass excess -808,81 keV (isotopic abundance 0,038%))
188O = stable (mass excess -781,5 keV (isotopic abundance 0,205%))
198O = 26.464 s (β- (100%); mass excess 3334,9 keV)
208O = 13.51 s (β- (100%); mass excess 3797,5 keV)
218O = 3.42 s (β- (100%); mass excess 8063 keV)
228O = 2.25 s (β- (100%); mass excess 9280 keV)
238O = 90 ms (β- (100%); mass excess 14610 keV)
248O = 65 ms (β- (100%); mass excess 19070 keV)
258O = 2.8 цs (n (100%); mass excess 27350 keV)
268O = 90 цs (2n (100%); mass excess 34730 keV)
278O = < 260 ns ()
288O = < 100 ns ()

Vapour pressure (Torr):

1 (-219°C)
10 (-210.7°C)
100 (-198.7°C)

Permittivity (dielectric constant):

1.000486 (25°C)

Viscosity (mPa·s):

0.0192 (0°C)
0.0218 (50°C)
0.0244 (100°C)
0.029 (200°C)
0.0369 (400°C)
0.189 (-183°C)

Speed sound (m/s):

314 (0°C, aggregative state - gas)

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

0 (g)

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

0 (g)

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

205.04 (g)

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

29.35 (g)

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

0.446

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

6.828

Gas phase basicity ΔbaseG (298 K, kJ/mol)

-396.3 (g) [Ref.]

Neel temperature (K):

23.9

Critical temperature (°C):

-118.37

Critical pressure (MPa):

5.08

Critical density (g/cm3):

0.41

References:

  1. Comey A. M., Hahn D. A. A dictionary of Chemical Solubilities Inorganic. - 2 ed. - New York, The MacMillan Company, 1921. - pp. 635-639
  2. Journal of Fluorine Chemistry. - 1977. - Vol. 9, No. 2. - pp. 137-146 [DOI: 10.1016/S0022-1139(00)82152-1]
  3. Battino R., Rettich T.R., Tominaga T. The Solubility of Oxygen and Ozone in Liquids / Journal of Physical and Chemical Reference Data. - 1983. - Vol. 12, No.2. - pp. 163-178
  4. Nuclear Physics A. - 2003. - vol.729, Issue 1, 1 December. - pp. 28-31
  5. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1352-1360
  6. Вредные химические вещества: Неорганические соединения элементов V-VIII групп. Справочник. - Л., 1989. - pp. 150-170 [Russian]
  7. Глизманенко Д.Л. Получение кислорода. - 5 изд. - М.: Химия, 1972 [Russian]
  8. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 565-566 [Russian]
  9. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 50 [Russian]
  10. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 47-49 [Russian]
  11. Патрунов Ф.Г. Ниже 120 по Кельвину. - М.: Знание, 1989. - pp. 46-47 [Russian]
  12. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 27, 72-73 [Russian]
  13. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 568-575 [Russian]
  14. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 387-389 [Russian]
  15. Химмотология ракетных и реактивных топлив. - Под ред. Браткова А.А. - М.: Химия, 1987. - pp. 44-50 [Russian]
  16. Энциклопедия для детей. - Т.17: Химия. - М.: Аванта+, 2004. - pp. 232-233 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru