FLUORIC ACID. 167 



parts of fused chloride of silver, which is equiv- 

 alent to 4'323l6 parts of oxide of silver. Con- 

 sequently, if the fluate of silver was anhydrous, 

 and composed of fluoric acid and oxide of silver, 

 its constituents must be 



Fluoric acid 0-42784? or 1-45965 

 Oxide of silver 4-32316 - 14-75 



4-75100* 



(2.) Six parts of fluate of barytes, when de- 

 composed by sulphuric acid, yielded 7*968 parts 

 of sulphate of barytes, equivalent to 5'267 parts 

 of sulphate of barytes. Hence, fluate of barytes 

 is composed of 



Fluoric acid 0-733 or 1-35693 



Barytes 5-267 - 9'75 



6-000 1 



(3.) Ten parts of very pure transparent fluate 

 of lime from Derbyshire, when decomposed by 

 sulphuric acid, furnished 17*368 parts of sul- 

 phate of lime, equivalent to 7*15153 parts of 

 lime. Hence, fluate of lime is composed of 



Fluoric acid 2-84847 or 1-39446 



Lime 7'15153 - 3-5 



10-00000 



(4.) Sir H. Davy had made a previous analy- 

 sis of fluor spar which deserves to be stated. He 

 found its constituents 



* Annals of Philosophy, XV. 279. f Ibid. 



L4 



