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Viscosity of common gases

Viscosity of gases at atmospheric pressure from -150 to 600 celsius, among which air, nitrogen, oxygen, steam

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1. Variation of gas viscosity with temperature
2. Graph of viscosity changes with temperature for common gases
3. Data table : variation of gases viscosity as a function of temperature
4. Variation with pressure

1. Variation of gas viscosity with temperature

How does viscosity of gases vary with temperature ?

The viscosity of gases is, in general, increasing with temperature. The additional movement of the gas molecules is actually causing more contact, thus interaction in between molecules leading to an increase in viscosity.

This page is detailing the viscosity in between -150°c and +600°c for common gases : Oxygen, Air, Nitrogen, Carbon Dioxide, Steam, Hydrogen.

2. Graph of viscosity changes with temperature for common gases


Viscosity of some gases as function of temperature

3. Data table : variation of gases viscosity as a function of temperature


Viscosity in mPa.s or cP
Temperature in celsius Oxygen Air Nitrogen Carbon Dioxide Steam Water Hydrogen
-150 0.01 0.009 0.0086

0.0046
-100 0.0132 0.0121 0.0116 0.009
0.006
0 0.0192 0.0176 0.0168 0.0136 0.009 0.0083
100 0.0244 0.022 0.021 0.0183 0.0128 0.0104
200 0.029 0.026 0.0248 0.0224 0.0164 0.01202
300 0.0332 0.0298 0.028 0.0265 0.0202 0.014
400 0.037 0.033 0.0308 0.0302 0.024 0.0156
500 0.0404 0.036 0.0332 0.0338 0.0278 0.017
600 0.044 0.0388
0.037 0.0314 0.0184

Note : Approximate values

The data table below is aggregated from different sources (warning : not verified individually), it gives the viscosity of 30+ common gases as a function of the temperature.




Viscosity in μPa.s



100K 200K 273K 300K 400K 500K 600K
C₂H₂ Acethylene Viscosity of the gas Acethylene

9.35



C2H2 Acetylene Viscosity of the gas Acetylene


10.4 13.5 16.5
Air Air Viscosity of the gas Air 7.1 13.3
18.5 23.1 27.1 30.8
Air Air Viscosity of the gas Air

17.3



H3N Ammonia Viscosity of the gas Ammonia


10.2 14 17.9 21.7
NH₃ Ammonia Viscosity of the gas Ammonia

9.18



Ar Argon Viscosity of the gas Argon

20.9



Ar Argon (P=0) Viscosity of the gas Argon (P=0) 8.1 15.9
22.7 28.6 33.9 38.8
BF3 Borontrifluoride Viscosity of the gas Borontrifluoride
12.3
17.1 21.7 26.1 30.2
C4H10 Butane Viscosity of the gas Butane


7.5 9.9 12.2 14.5
C₄H₁₀ Butane Viscosity of the gas Butane

8.1



CO₂ Carbon Dioxide Viscosity of the gas Carbon Dioxide

13.7



CO Carbon Monoxide Viscosity of the gas Carbon Monoxide

16.6



CO2 Carbondioxide Viscosity of the gas Carbondioxide
10.1
15 19.7 24 28
CO Carbonmonoxide Viscosity of the gas Carbonmonoxide 6.7 12.9
17.8 22.1 25.8 29.1
Cl₂ Chlor Viscosity of the gas Chlor

12



CHCl3 Chloroform Viscosity of the gas Chloroform


10.2 13.7 16.9 20.1
D2 Deuterium(P=0) Viscosity of the gas Deuterium(P=0) 5.9 9.6
12.6 15.4 17.9 20.3
D2O Deuteriumoxide(P=0) Viscosity of the gas Deuteriumoxide(P=0)


10.2 13.7 17.8 22
C4H10O Diethylether Viscosity of the gas Diethylether


7.6 10.1 12.4
C2H6 Ethane Viscosity of the gas Ethane
6.4
9.4 12.2 14.8 17.1
C₂H₆ Ethane Viscosity of the gas Ethane

8.5



C2H6O Ethanol Viscosity of the gas Ethanol



11.6 14.5 17
C₂H₅Cl Ethyl Chloride Viscosity of the gas Ethyl Chloride

9.4



C2H4 Ethylene Viscosity of the gas Ethylene
7
10.4 13.6 16.5 19.2
C₂H₄ Ethylene Viscosity of the gas Ethylene

9.85



He Helium Viscosity of the gas Helium

18.8



He Helium(P=0) Viscosity of the gas Helium(P=0) 9.6 15.1
19.9 24.3 28.3 32.2
C6H14 Hexane Viscosity of the gas Hexane



8.6 10.8 12.8
H₂ Hydrogen Viscosity of the gas Hydrogen

8.42



HCl Hydrogen Chloride Viscosity of the gas Hydrogen Chloride

146.4



ClH Hydrogenchloride Viscosity of the gas Hydrogenchloride


14.6 19.7 24.3
H2S Hydrogensulfide Viscosity of the gas Hydrogensulfide


12.5 16.9 21.2 25.4
C₄H₁₀ i-Butane Viscosity of the gas i-Butane

7.47



C4H10 Isobutane Viscosity of the gas Isobutane


7.5 9.9 12.2 14.4
Kr Krypton Viscosity of the gas Krypton

23.2



Kr Krypton(P=0) Viscosity of the gas Krypton(P=0)
17.4
25.5 32.9 39.6 45.8
CH₄ Methane Viscosity of the gas Methane

10.3



CH4 Methane(P=0) Viscosity of the gas Methane(P=0) 3.9 7.7
11.1 14.2 17 19.5
CH4O Methanol(P=0) Viscosity of the gas Methanol(P=0)
6.6
9.7 13 16.4 19.8
CH₃Cl Methyl Chloride Viscosity of the gas Methyl Chloride

9.89



Ne Neon Viscosity of the gas Neon

29.7



Ne Neon(P=0) Viscosity of the gas Neon(P=0) 14.4 24.1
31.9 38.6 44.8 50.6
NO Nitricoxide Viscosity of the gas Nitricoxide
13.8
19.2 23.8 28 31.9
N2 Nitrogen Viscosity of the gas Nitrogen 7 12.9
17.9 22.2 26.1 29.6
N₂ Nitrogen Viscosity of the gas Nitrogen

17



NO Nitrogen Oxide Viscosity of the gas Nitrogen Oxide

17.8



N2O Nitrousoxide(P=0) Viscosity of the gas Nitrousoxide(P=0)
10
15 19.8 24.1 27.9
H2 Normalhydrogen(P=0) Viscosity of the gas Normalhydrogen(P=0) 4.1 6.8
8.9 10.9 12.8 14.5
O2 Oxygen Viscosity of the gas Oxygen 7.7 14.7
20.7 25.8 30.5 34.7
O₂ Oxygen Viscosity of the gas Oxygen

20.3



C5H12 Pentane Viscosity of the gas Pentane


6.7 9.2 11.4 13.4
C₅H1₂ Pentane Viscosity of the gas Pentane

8.74



C3H8 Propane Viscosity of the gas Propane


8.2 10.8 13.3 15.6
C₃H₈ Propane Viscosity of the gas Propane

7.95



C₃H₆ Propene Viscosity of the gas Propene

8.35



O2S Sulfurdioxide Viscosity of the gas Sulfurdioxide
8.6
12.9 17.5 21.7
F6S Sulfurhexafluoride(P=0) Viscosity of the gas Sulfurhexafluoride(P=0)


15.3 19.7 23.8 27.6
SO₂ Sulphur Dioxide Viscosity of the gas Sulphur Dioxide

11.7



H₂S Sulphur Hydrogen Viscosity of the gas Sulphur Hydrogen

11.66



H2O Water(P=0) Viscosity of the gas Water(P=0)


9.8 13.4 17.3 21.4
Xe Xenon Viscosity of the gas Xenon

21



Xe Xenon(P=0) Viscosity of the gas Xenon(P=0)
15.7
23.2 30.5 37.2 43.5

4. Variation with pressure

How does viscosity of gases vary with pressure ?

If the pressure increases, gases viscosity is usually increasing as well.