OF AMMONIA. 245 



volumes of carbonic acid and ammoniacal 

 gases. 



6. Borate of ammonia. The constituents of Borate, 

 this salt seem to me to be as follows : 



1 atom boracic acid 3 



1 atom ammonia . 2-125 



2 atoms water . . 2*25 



7-375 



I merely satisfied myself that the acid existing in 

 the salt is not more than 1 atom. I then ascer- 

 tained the weight of the acid, and inferred the 

 other constituents from the deficiency of weight. 

 The above analysis approaches to that of Berze- 

 lius.* 



7. Phosphate of ammonia crystallizes in rhom- Phosphate, 

 boids, and is much less transparent than biphos- 

 phate. The constituents of this salt are as fol- 

 lows : 



1 atom phosphoric acid 3*5 



1 atom ammonia . 2-125 



2 atoms water . 2-250 



7'875 



7*875 grains of phosphate of ammonia in crys- 

 tals were dissolved in water, and mixed with a 

 solution of 2O75 grains of nitrate of lead. After 

 the precipitation of the phosphate of lead, the 



See Annals of Philosophy, III. 57. 

 Q3 



