EXPERIMENTS OF GASES ABSORBED BY WATER. 241 



The report which I have already given of the quantity of On the correct 



carbonic acid eras abforbed under the ordinary preflTure of the quantities of the 

 r . . J feveral gales ab- 



atmofphere I find no reafon to correct, but of fulphurated hy- forbed. 



drogen gas I have effected a larger abforption than the one 

 before ftated, and have repeatedly obferved its amount to be 

 106 or 108 by 100 meafures of water, at 60° of Fahrenheit, 

 which temperature is to be underftood in all the following ex- 

 periments. 



Of feveral experiments on the abforption of nitrous oxide, 

 I take the following as a fair example of the whole. I agitated 

 at three feveral times, 1175 meafures of nitrous oxide, with 

 1320 meafures of water; 1025 parts of gas difappeared, and 

 the unabforbed remainder 150 contained 15 of foreign admix- 

 tures. It follows that 100 parts of water had taken up 77.6 

 of nitrous oxide ; and after adding to thefe the diminution of 

 abforption occafioned by the impurity of the refidium, it may 

 be inferred that 100 parts of water would abforb 86 of abfo- 

 lutely pure nitrous oxide. 



With refpecl to the remaining gafes I have been prevented 

 by urgent profeffional engagements, from examining the quan- 

 tity of each abforbable under fimilar circurattances, except in 

 the inftances of oxygenous, azotic and hydrogenous gafes. 

 The refults of thefe experiments are comprifed in the follow- 

 ing table. The firft column (hows the quantity of gas which 

 100 parts of water, at 60°, have actually abforbed ; the fe- 

 cond the quantity which ought to be taken up, provided the 

 refidue were in a ftate of abfolute purity. In the example of 

 nitrous gas alone, the eftimated is lefs than the actual abforp- 

 tion ; becaufe a fmall portion of this gas lofes its aerial form, 

 by union with the oxygenous gas from which water cannot be 

 entirely freed. 



A table (hewing the quantity of each gas abforbed by 100 Table of abforp- 



