Mineral Substances of Organic Origin. No. III. Ozocerite, 393 



Melts at 



Boils at 



In iEther. 



Action of hot sul- 

 phuric acid. 



62°C. = 141-6° F. 

 84°C. = 182°F. 



56° to 51° C. = 



133° to 134° F. 

 60°C. = 140°F. 

 39°C. = 102°F. 



58°C. = 136°F. 



73°C. = 163°F. 



210° C. =410° F. 

 300OC. = 572°F. 

 30O°C. = 572*' F. 

 121° €.=.= 250° F. 



Above 260° C. 

 = 500° F. 



Dissolves. 



Almost insoluble. 



In boiling aether, 



very soluble. 

 Largely soluble. 

 Wholly soluble. 



Soluble in boiling 



aether. 

 Very sparingly so- 

 luble in boiling 

 aether. 



Chars a portion 



of it. 



■> 





 











These results give for the crude mixed mineral, and for the 

 portion soluble in aether, the same composition. 



The ratio of the elements in the fourth analysis is that of 

 atom to atom ; the loss I attribute to the pumping out of a 

 portion of the substance from the tube along with the moist- 

 ure contained in the oxide of copper, the sand with which 

 the tube was warmed in this experiment having been too hot 

 for a substance boiling so low as 250° Fahr. 



The small portion of matter at my disposal prevented me 

 from subjecting to analysis either of the other compounds 

 contained in the crude mass ; the composition of this mass, 

 however, as exhibited in No. I., shows that these also must 

 contain the elements in the same proportion as the matter 

 actually analysed. 



The following table shows also the identity, in chemical 

 constitution, of these several substances, with the different 

 varieties of Ozocerite from Moldavia. 



