FLUOBORIC ACID. 181 



gas, that represents the jieutral compound of 1 

 atom of each constituent. 

 Now, 



1 volume fluoboric gas weighs 2-3611 or 4-25 



2 volumes ammoniacal . 1-1805 - 2-125 



represents the weight of an atom of am- 

 monia, and 4*25 must represent the weight of an Atom of 

 atom of fluoboric acid. Now, an atom of bora- add. " 

 cic acid being 3, and an atom of fluoric acid 

 1*2,5, it is evident that fluoboric acid is a com- 

 pound of 1 atom of boracic acid and 1 atom of 

 fluoric acid united together. For 



3 X 1-25 = 4-25 = the atomic weight of fluoboric acid. 



The solid salt, composed of 1 volume fluobo- 

 ric acid and 1 volume ammoniacal gas, is ob- 

 viously a bifluoborate of ammonia, composed of 



* 



2 atoms fluoboric acid 8-5 



1 atom ammonia 2-125 



10-625 



So that an integrant particle of it is represented 

 by the number 1O625. 



The third saline compound, consisting of 1 

 volume of fluoboric gas and 3 volumes of am- 

 moniacal gas, is obviously a subsesquifluoborate, 

 composed of 



M3 



