COMBINATION OF ACIDS AND BASES. 



95 



given by Thomsen to express the heat disengaged in the combination of soda 

 with nitric acid will prove to be as far below the true number as that given by 

 MM. Favre and Silbermann is above it. 



Table I. — Potash. 



Acid. 



Andrews, 



Favee and 



Andrews, 



1841. 



Silbermann. 



1870. 



Sulphuric, . 



16330 



16083 



16701 



Nitric, 



15076 



15510 



14800 



Hydrochloric, 



14634 



15656 



14940 



Oxalic, 



14771 



14156 



15124 



Acetic, 



14257 



13973 



13805 



Tartaric, 



13612 



13425 



13508 



Table II. — Soda. 



Acid. 



Andrews, 

 1841. 



Favee and 

 Silbermann. 



Andrews, 

 1870. 



Thomsen. 



Sulphuric, 



16483 



15810 



16580 



15689 



Nitric, 



14288 



15283 



14480 



13617 



Hydrochloric, 



14926 



15128 



14744 



13740 



Oxalic, 



14796 



13752 



15032 





Acetic, 



14046 



13600 



14000 





Tartaric, 



13135 



13651 



13400 





Table III. — Ammonia. 



Acid. 



Andrews, 



Favre and 



Andrews, 



1841. 



Silbermann. 



1870. 



Sulphuric, . 



14135 



14690 



14710 



Nitric, 



12440 



13676 



12683 



Hydrochloric, 



12440 



13536 



12964 



Oxalic, 



12684 





13088 



Acetic, 



12195 



12649 



12316 



Tartaric, . ... 



11400 





11744 



