OF SODA. 



but we could not succeed in obtaining any such 

 salt. 



20. Saclactate of soda. This salt has been 

 noticed in a preceding chapter. Its constituents 

 are 



1 atom saclactic acid 13 

 1 atom soda 4 



5 atoms water 5-625 



22-625 



21. Urate of soda. This salt was formed by 

 digesting together uric acid, ^ and a solution of 

 the carbonate of soda in the requisite propor- 

 tions. The whole acid dissolved in the hot li- 

 quid, but afterwards precipitated when the so- 

 lution was set aside ; it was dried in the open, 

 air. This salt is a white tasteless powder, not 

 sensibly soluble in water. Its constituents are 



1 atom uric acid 9 

 1 atom soda 4 



1 atom water 1-125 



14-125 



The salts of soda, in general, present a striking 

 contrast to those of potash : only two of them 

 are anhydrous the nitrate and oxalate; the 

 urate contains only 1 atom of water, and the 

 sesquicarbonate and tartrate only 2 ; all the 

 rest contain 5, G, 8, 10, or 12 atoms of water. 



