TABLE 348.— DIFFUSION OF VAPORS 



355 



Coefficients of diffusion of vapors in cgs units. The coefficients are for the temperatures 

 given in the table and a pressure of 76 cmHg. 



Vapor Temp. °C 



Acids : Formic 



65.4 



84.9 



Acetic 



" 65.5 



" 98.5 



Isovaleric 



98.0 



Alcohols : Methyl 



25.6 



49.6 



Ethyl 



40.4 



66.9 



Propyl 9 



66.9 



83.5 



Butvl 



99.0 



Amyl 



99.1 



Hexyl 



99.0 



Benzene 



19.9 



45.0 



Carbon disulfide 



19.9 



32.8 



Esters : Methyl acetate 



20.3 



Ethyl " 



" 46.1 



Methyl butyrate 



92.1 



Ethyl " 



96.5 



" valerate 



97.6 



Ether 



19.9 



Water 



49.5 



92.4 



SMITHSONIAN PHYSICAL TABLES 



