328 



TABLE 327.— VISCOSITY OF MISCELLANEOUS LIQUIDS 



Viscosities are given in cgs units, dyne-seconds per cm 2 , or poises. 



Liquid 

 Acetaldehyde 



Air 



Aniline 



Bismuth 



Black treacle 



Copal lac 



Hydrogen, liquid 



Menthol, solid 



liquid 



Mercury 



u 



u 



Oils: 



* Dogfish-liver .923 . . 



" .918 .. 

 " .908 . . 



Linseed .925 



" .922 



" .914 



♦Spindle oil .885 



* Light machinery 

 .9071 



* Light machinery . . . 



*"Solar red" engine.. 

 *"Bayonne" engine . . 

 *"Queen's red" engine 



*"Galena" axle 



* Heavy machinery . . 



* American mineral oils; 

 % Densities. 



°C Viscosity Liquid °C Viscosity 



0. .00275 Oils : 



10. .00252 * Filtered cylinder .. 37.8 2.406 



20. .00231 " " 100.0 .187 



—192.3 .00172 * Dark cylinder 37.8 4.224 



20. .04467 " " .... 100.0 .240 



60. .0156 " " .... 37.8 7.324 



285. .0161 " " .... 100.0 .341 



365. .0146 *"Extra L. L." 37.8 11.156 



12.3 .400 " " " 100.0 .451 



22. 4.80 * Linseed .925 30. .331 



— .00011 " .922 50. .176 



14.9 2X10" " .914 90. .071 



56.9 .069 Olive .9195 10. 1.38 



-20. .0184 " 15. 1.075 



0. .01661 " .9130 20. .840 



20. .01547 " .9065 30. .540 



34. .01476 " .9000 40. .363 



98. .01263 " .8935 50. .258 



193. .01079 " .8800 70. .124 



299. .00975 + Rape 15.6 1.118 



37.8 .422 



30. .414 " 100.0 .080 



50. .211 " (another) .... 15.6 1.176 



90. .080 " (another) .... 100.0 .085 



30. .331 * Soya bean .919 30.0 .406 



50. .176 " " .915 50.0 .206 



90. .071 " " .906 90.0 .078 



15.6 .453 t Sperm 15.6 .420 



37.8 .162 " 37.8 .185 



100.0 .033 " 100.0 .046 



Phenol 18.3 .1274 



15.6 1.138 " 90.0 .0126 



37.8 .342 Sulfur 170. 320.0 



100.0 .049 " 180. 550.0 



15.6 1.915 " 187. 560.0 



37.8 .496 " 200. 500.0 



100.0 .058 " 250. 104.0 



15.6 2.172 " 300. 24.0 



37.8 .572 " 340. 6.2 



100.0 .063 " 380. 2.5 



15.6 2.995 " 420. 1.13 



37.8 .711 " 448. .80 



100.0 .070 Sulfuric acid (p = 1.03) 25. .00973 



15.6 4.366 t Tallow 66. .176 



37.8 .909 " 100. .078 



15.6 6.606 Zinc 280. .0168 



37.8 1.274 " 357. .0142 



" 389. .0131 



based on water as .01028 at 20°C. t Based on water as per 1st footnote. 



TABLE 328.— RATIO OF VISCOSITY AT HIGH TO THAT AT ATMOSPHERIC 



PRESSURE 



SMITHSONIAN PHYSICAL TABLES 



