570 



Specific Surface-Energy 

 in Erg pro cm2. 



€^o' zoc' /ji>' óoo°a3o''9oo'9so' /a}o°/üöO'uoo°//oo'/2co' Temperature 



Fig. 4. 



Specific Surface-Energy 

 in Erg pro cm2. 



10 



Temperature 



6S0" 700° 7iO' dOO' i)50~ 90O" 9iO' /OOC' U>30' 



Fig. 5. 

 ^ 7. From these data it can be deduced in the iirst place, that 

 in jj;eneral the temperature-coefilcients of the specific surface-energy 

 X of these salts appeai- to be smaller than for most organic liquids. 

 While in the last mentioned cases these values are oscillating between 

 0.09 and 0.13, — as the following instances may prove once more : 



Acetic acid: 0.118. 

 Benzene: O.J 36. 

 Diethylmalonate : 0.102 

 Anisol: 0.114. 

 Phenetol: O.J 02. 

 Anethol: 0.094. 



Guajacol: 0.117. 

 Resorcine-Dimethyletlier : 0.105. 

 HychoquinoneDimethi/lether: O.lOd. 

 Pyridine : 0.125. 

 a-Picoline : 0.128. 

 Chinoline : 0.104. 



— the values of b for these salts are situated between 0,05 and 

 0,09, being tlius about of the order of magnitude of the coefticient 

 for e.g. ethylalcohol : 0.086. Only in the case of some fluorides some 

 numbers for h were found, corresponding in some degree with those 

 for organic liquids. {LiF : 0,J26; RhF : 0,131; NaF : 0.106). If 

 attention is drawn to the much higher temperatures of observation 

 in the case of molten salts in comparison with those of the organic 

 liquids, it will be hardly permitted to conclude to a principal difïer- 

 ence in this respect, in the behaviour of both classes of liquids; on 

 the other side however just with respect to these much higher 



