94 URANIUM, ANTIMONY, CHROMIUM, &C. 



It is probably a compound of 



1 atom oxalic acid . 4*5 



5 atoms titanic acid . 30 



6 atoms water . . 6-75 



41-25 



If we calculate from Rose's analysis, the atomic 

 weight of titanic acid will be ^P 1 = 6-409- 

 atomT c ent Thus no fewer than eight values have been 

 obtained for the atomic weight of titanic acid. 



1. From the analysis of the sulphuret . 6-250 



2. From titanic acid from a given weight of sul- 



phuret ... . 6-500 



3. From the acidification of titanium . . 5-832 



4. From the decomposition of carbonate of soda 5-954 



5. From the titaniate of soda . . 6-579 



6. From titaniate of potash . . . 5-591 



7. From the compound of titanic and sulphuric 



acids . . . . . . 6171 



8. From ditto of titanic and oxalic acids . 6-409 



The mean of all these values gives us 6'l6l 

 for the atomic weight ; and if we were to re- 

 ject the second value, which seems least likely 

 to be correct, the weight would be 6-112. 

 Now, from the law which has been so amply 

 confirmed in the preceding chapters of this work, 

 it follows, that the true weight must be either 6 

 or 6*25 ; and, as 6*112 is nearest the former 

 of these numbers, 6, in all probability, is the true 

 atomic weight of titanic acid. 



16 



