Table 166. 



VISCOSITY OF LIQUIDS. 



Viscosities are given in cgs units, dyne-seconds per cm', or poises. 



157 



Liquid. 



Acetaldehyde 



Air '.'.'.'.'.'.'.'.'. 



Aniline 



Bismuth 



Copal lac 



Glycerine 



8o'.3i%H20. 



64.05% H2O. 



49.7g%H20. 



Hydrogen, liquid 



Menthol, solid 



" liquid 



Mercury 



Oils: 

 Dogfish-liver .923%.. 

 " .918... 

 " " .908... 



Linseed . 925 



" .922 



• 914 



* Spindle oil .885. . . 



* Light machinery 



• 907! 



* Light marhinery. . . 



* " Solar red" engine. 



*" Bayonne" engine 



* 'I •' 



* " Queen's red " engine 



* " Galena '' axle oil 



Hf .< .1 .> 



* Heavy machinery 



* Filtered cylinder. 



* Dark cylinder . . . 



60. 

 285. 

 365- 

 22. 

 2.8 

 14-3 

 20.3 

 26. s 

 8.5 

 8.5 

 _8.5 



14.9 



34.9 

 — 20. 



193. 

 299. 



30. 

 so. 

 90. 

 30 ■ 

 SO. 

 90. 

 15.6 

 37.8 

 100. o 



IS. 6 



37.8 



100. o 

 15.6 

 37.8 



100.0 

 IS. 6 

 37.8 



100. o 

 IS. 6 

 37.8 



100. o 

 15-6 

 37-8 

 IS. 6 

 37.8 

 37.8 



100. o 

 37.8 



100. o 



Liquid. 



* Darlt cylinder . . 

 *" Extra L. L."'. 



Linseed .925 %. . 



" .922 



" .914... 



Olive .9195 



" .9130 



" .9065 



" .9000 



" .8935 



" .8800 



t Rape 



" (another) 



" (another) 



Soya bean .919 % 



" .915. 



" " .906. 



t Sperm 



Paraffins: 



Pentane 



Hexane 



Heptane 



Octane 



Nonane 



Decane 



Undecane 



Dodecane 



Tridecane 



Tetradecane .... 



Pentadecane. ... 



Hexadecane 



Phenol 



Sulphur 



t Tallow 



Zinc 



37-8 

 100.0 



37.8 

 100.0 



30. 



SO. 



90. 



10. 



IS. 



20. 



30. 



40. 



SO. 



70. 



IS. 6 



37.8 

 100. o 



15.6 

 100.0 



30.0 



So.o 



90.0 



15.6 



37-8 

 100.0 



21.0 

 23.7 

 24.0 

 22. 2 

 22.3 

 22.3 

 22.7 

 23.3 

 23 -3 

 21.9 

 22.0 

 22.2 

 18.3 

 90.0 



170. 



180. 



187. 



200. 



250. 



300. 



340. 



380. 



420. 



448. 

 66. 



100. 



280. 



3S7. 



389. 



Viscosity. 



7.324 

 0.341 

 11.156 

 0.4S1 

 0.331 

 o. 176 

 0.071 

 1.38 

 I.07S 

 0.840 

 0.540 

 0.363 

 0.258 

 o. 124 

 1.118 

 0.422 

 0.080 

 1. 176 

 0.08s 

 0.406 

 o. 206 

 0.078 

 0.420 



0.18s 



0.046 



0.0026 

 0.0033 

 0.004s 

 O.O0S3 

 0.0062 

 0.0077 

 0.0095 

 0.0126 

 0.0155 

 0.0213 

 0.0281 

 0.0359 

 o. 1274 

 0.0126 



320.0 



S50.0 



560.0 



Soo.o 



104.0 

 24.0 

 6.2 

 2.5 

 1.13 

 0.80 

 o. 176 

 0.078 

 0.0168 

 0.0142 

 0.0131 



Refer- 

 ence 



* American mineral oils; based on water as .01028 at 20° C. t Based on water as per ist footnote, t Densities. 



References: (i) Thorpe and Rodger, 1S94-7; (2) Verschaffelt, Sc. Ab. 1917; (3) Wijkander, 1879; (4) Pluss. 

 Z. An. Ch. 93, 1915; (5) Metz, C. R. 1903; (6) Schottner, Wien. Ber. 77, 1878, 79, 1879; (7) Heydweiller, W. Ann. 

 63. 1897; (8) Koch, W. Ann. 14, 1881; (9) White, Bui. Bur. Fish. 32, 1912; (10) Archbutt-Deeley, Lubrication and 

 Lubricants, 1912; (11) Higgins, Nat. Phys. Lab. 11, 1914; (12) Bartolli, Stracciati, 1885-6; (13) Scarpa, 1903-4; 

 (14) Rotinganz, Z. Ph. Ch. 62, 1908. 



Ratio ol Viscosity at High to that at Atmospheric Pressure. 



Hyde, Pr. Roy. Soc. 97A, 240, 1920. 



Smithsonian Tables. 



