377 



XIII 



Molecular weight: 130.08. 



Radius of the Capillary tube: 0.04803 cm. 

 Depth :0.1 mm. 



Under a pressure of 18 mm., the substance boils at 75.°5 C; in the 

 at — 71°C. very viscous liquid, the growing of the gas-bubbles took 

 more than 60 seconds. The specific gravity at 25° C. is : ^/.o =1.0247; 

 at 50X.: 0.9991; at 

 —0.00000024 1\ 



75° C: 0.9732. At /'^ C. : rf^o^^ 1-0500-0.001006^ 



XIV. 



