OP ARTS AND SCIENCES. 149 



Calculated for Found. 



Ba<C5HoBr03).,HoO. I. II. 



H2O 3.36 " ' 3.56 3.52 



I. 0.8920 grm. of the anhydrous salt gave on ignition with HgSO^ 

 0.4005 grm. BaSO^. 

 II. 0.6245 grm. of the anhydrous salt gave on ignition with HgSO^ 

 0.2816 grm. BaSO^. 



Calculated for Found. 



Ba(C5H2Br03)3. I. H. 



Ba 26.50 26.39 26.51 



The solubility of the salt in cold water we determined according to 

 the method of V. Meyer. 



I. 6.1243 grm. of a solution saturated at 20° gave on precipitation 



with H^SO, 0.0581 grm. BaSO,. 

 II. 3.3922 grm. of a solution saturated at 20° gave on precipitation 

 with H^SO, 0.0317 grm. BaSO^. 



The aqueous solution saturated at 20° therefore contained the follow- 

 ing percentages of the anhydrous salt : — 



I. II. 



2.11 2.07 



Calcic [B-Monobrompyromucate, Csi(QA:\,JivO.^., . 3 H^O. — The calcium 

 salt we prepared by neutralizing an aqueous solution of the acid with 

 calcic carbonate. It crystallizes in small clustered^branching needles, 

 which are sparingly soluble in cold water, more readily in hot. The 

 salt is permanent in the air, but effloresces over sulphuric acid. 



I. 1.1027 grm. of the air-dried salt lost at 120° 0.1314 grm. H,0. 



II. 1.8043 grm. of the air-dried salt lost at 120° 0.2047 grm. HgO. 



Calculated for Found. 



Ca(C5lIoBi03), . 3 UoO. I. II. 



H,0 11.40 11.30 11.34 



I. 0.4784 grm. of the anhydrous salt gave on ignition with H^SO^ 

 0.1534 grm. CaSO,. 

 II. 0.5696 grm. of the anhydrous salt gave on ignition with II^SO^ 

 0.1838 grm. CaSO,. 



Ca 



