Viscosity of Liquids and Gases

Liquids
Viscosity
(Poise)
Acetone
0.0032
Alcohol(ethyl)
0.012
Blood (whole)
0.04
Blood plasma
0.015
Gasoline
0.006
Glycerine
14.9
Mercury
0.016
Oil (light)
1.1
Oil (heavy)
6.6
Water
0.01
Gases
Viscosity
(Poise)
Air
0.00018
Helium
0.00019
Methane
0.00020
Nitrogen
0.00018
Oxygen
0.00020
Water vapor
(steam)
0.00013
 Viscosity has the SI units Pascal seconds (Pa s) which is called the Poiseuille. More commonly used is the dyne sec/cm2 which is called Poise. One Pa s is 10 Poise. The Poise is used in the table because of its more common usage. Data from Gustafson. These viscosities are at 20°C except for the blood and blood plasma which are at body temperature, 37°C, and for steam which is at 100°C.
Index

Tables

Reference
Gustafson
 
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Viscosity of Water

Temperature
°C
Dynamic Viscosity
(centiPoise)
Kinematic Viscosity
(centistoke)
Density
gm/cm3
2
1.6735
1.6736
0.9999
3
1.619
1.6191
1
4
1.5673
1.5674
1
5
1.5182
1.5182
1
6
1.4715
1.4716
0.9999
7
1.4271
1.4272
0.9999
8
1.3847
1.3849
0.9999
9
1.3444
1.3447
0.9998
10
1.3059
1.3063
0.9997
11
1.2692
1.2696
0.9996
12
1.234
1.2347
0.9995
13
1.2005
1.2012
0.9994
14
1.1683
1.1692
0.9992
15
1.1375
1.1386
0.9991
16
1.1081
1.1092
0.9989
17
1.0798
1.0811
0.9988
18
1.0526
1.0541
0.9986
19
1.0266
1.0282
0.9984
20
1.0016
1.0034
0.9982
21
0.9775
0.9795
0.998
22
0.9544
0.9565
0.9978
23
0.9321
0.9344
0.9975
24
0.9107
0.9131
0.9973
25
0.89
0.8926
0.997
26
0.8701
0.8729
0.9968
27
0.8509
0.8539
0.9965
28
0.8324
0.8355
0.9962
29
0.8145
0.8178
0.9959
30
0.7972
0.8007
0.9956
31
0.7805
0.7842
0.9953
32
0.7644
0.7682
0.995
33
0.7488
0.7528
0.9947
34
0.7337
0.7379
0.9944
35
0.7191
0.7234
0.994
36
0.705
0.7095
0.9937
37
0.6913
0.6959
0.9933
38
0.678
0.6828
0.993
39
0.6652
0.6702
0.9926
40
0.6527
0.6579
0.9922
45
0.5958
0.6017
0.9902
50
0.5465
0.5531
0.988
55
0.5036
0.5109
0.9857
60
0.466
0.474
0.9832
65
0.4329
0.4415
0.9806
70
0.4035
0.4127
0.9778
75
0.3774
0.3872
0.9748
80
0.354
0.3643
0.9718

The unit centiPoise = 0.001 Pa s and is is sometimes written mPa s.

The kinematic viscosity is the dynamic viscosity divided by the density of the fluid. In cgs units the unit is called the centistoke.

The viscosity of water decreases smoothly from the freezing point while the density remains essentially constant except for the small maximum in density near 4°C .

Index

Tables

Reference
Viscopedia
Data from IAPWS 2008
 
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