SODIUM CARBONATE. 



37 



SODIUM CARBONATE. 

 TABLE 11. SODIUM CARBONATE. 



SODIUM CHROMATE. 



Sodium chromate, being fairly soluble, was brought within the scope of 

 this work. It was not expected that the chromates would give normal 

 results, but, like the sulphates, would behave abnormally. It is quite 

 possible that the chromate is somewhat polymerized and that this is offset 

 by the hydration. The results would indicate the power to combine with 

 a small amount of water in the more concentrated solutions. Solutions of 

 greater concentrations could not be used, on account of the salt separating 

 out at the low temperatures. 



TABLE 12. SODIUM CHROMATE. 



