Beryllium by the action of Hydrochloric Acid. 113 







Table II. 





BeO taken in solution 

 as the chloride. 



BeO found. 



Error. 



(1) 0-0483 



(2) 0-0483 



(3) 0-1076 



0-0481 

 0-0483 

 0-1085 



0-0002- 



o-oooo 



0-0009 + 



In Table III, (l)-(9), are given the results of experiments 

 in which both the aluminum and the beryllium were deter- 

 mined — the former by precipitation as the hydrous chloride 

 and weighing as the oxide after igniting with mercuric oxide : 

 the latter by the conversion of the chloride, through the 

 nitrate, into the oxide. In experiment (10) (made to get 

 a comparison of the methods) the beryllium was recovered 

 by precipitating the hydroxide with ammonia from the par- 

 tially evaporated solution of the chloride after removing the 

 aluminum. 



In experiments (1) to (5), inclusive, the aluminum was deter- 

 mined exactly as previously described ; in (6) and (7) the solu- 

 tions (being originally larger) were concentrated by evaporation 

 previous to the addition of the ether and hydrochloric acid 

 mixture. In experiments (8), (9) and (10), the treatment was 

 varied advantageously by saturating the aqueous solution 

 directly with hydrochloric acid gas before adding an equal 

 volume of ether, and completing the saturation. 



Table III. 



A1 2 3 



taken in 







Final 

 volume. 



solution as the 

 chloride. 



A1 2 3 . 



Error. 



(i) 



0-1059 



0*1058 



o-oooi — 



i 9 cm3 



(2) 



0-1053 



0-1044 



0-0009 — 



12 



(3) 



0-1065 



0-1059 



0-0006 — 



12 



(4) 



0-1068 



0-1060 



0-0008 — 



12 



(5) 



0*1049 



0-1047 



0-0002 — 



12 



(6) 



0-1060 



0-1057 



0-0003 — 



12 



(7) 



0-1064 



0-1063 



o-oooi — 



12 



(8) 



0-1046 



0-1038 



0-0008 — 



30 



(9) 



0*1051 



0-1048 



0-0003 — 



30 



(10) 



0-1076 



0-1075 



0-0001 — 



30 



BeO taken in 

 solution as 

 the chloride. 



0-0198 

 0-0194, 

 0-0197 

 0-0199 

 0-0198 

 0-0977 

 0-1085 

 0*1083 

 0-1071 

 0-1086 



BeO 

 found. 



Error. 



0-0204 



0-0196 



0-0205 



0-0207 



0*0208 



0-0969;0 



0-10840 



0-1087IO 



0-1078|0 



0-10940 



•0006 + 

 0002 + 

 •0008 + 

 '0008 + 

 0010 + 

 •0008 - 

 •0001 — 

 •0004 + 

 •0007 + 

 0008 + 



These results are plainly very good. 



The manipulation of the process is not difficult. The gase- 

 ous hydrochloric acid is most conveniently produced by the 

 well known method of treating with strong sulphuric acid in 



