on Phosphoric Acid. 13 
Phosphate of barytes. 
This salt may be formed by mixing muri- 
ate of barytes with simple phosphate of soda; 
the phosphate of barytes falls down and mu- 
riate of soda remains in solution in the liquid. 
The phosphate is constituted of 23 parts acid 
and 68 barytes. 
It consists of 25.2 acid or 100 acid 
74.8 bar. 297 bar. 
100 
Phosphate of strontites. 
This salt may be formed in like manner as 
the above. 
‘It consists of 33.3 acid or 100 acid 
66.7 stron. 200 stron. 
100 
Phosphate of magnesia. 
This salt may be formed by mixing sul- 
phate of magnesia with phosphate of soda ; 
when duly proportioned the phosphate of 
magnesia precipitates and neutral sulphate of 
soda remains in solutiou in the liquid. 
