Aqueous Solutions of Acids and Alkalies. 



Table XIV. — Carbonate of Soda. 



NaO, CO 2 = 667*335 grs. Temperature 60° F. 



449 



The three substances at the head of the list are solids. 2-4659 is the specific 

 gravity of anhydrous carbonate of soda, as given by Karsten. 1-51 is the specific 

 gravity of the carbonate with 8 atoms of water of crystallization, as given by 

 Thomson. 1-423 is the specific gravity of the common crystallized carbonate 

 with 10 atoms of water, as given by Haidinger. The specific gravities of the 36 

 solutions are all from my experiments. The discrepancies in the results of these 

 experiments are very great. Carbonate of soda is a troublesome substance to 

 examine, in consequence of the extreme facility with which it crystallizes. Find- 

 ing it impossible to obtain concurrent results, I have quoted duplicate experi- 

 ments to give an idea of the general range of the reactions that take place. 



