6 P. T. Gleve, 



0.4422 gram Di^Oa gave 0.5169 gram DiOCl 

 2.2840 » » » 2.6661 » » 



According to these experiments 100 DigOs give 116.9 and 116.7 

 DiOCl; calc: 116.6. 



0.5169 gram gave 0.3827 gram AgCl and 0.4380 gram DiaOj. 



In percent: 



^ Calc 



Di 72.48 142.0 73.38 



CI 18.31 35.0 18.35 



9.21 16.0 8.27 



100.00 193.5 100.00 



Spec. Grav: 



0.5827 gram, temp. 21".5 sp. Gr. 5.793 

 0.8295 » » 21^.2 » » 5.735 



0.7117 » » 21''.2 )) » 5.725 



Mean of the three determinations: 5.751. 

 Molecular vohmie: 33.6. 



Bromide of didymium 



DiBr3 + 6H2 0. 



On evaporating the solution of the oxide of didymium in hydro- 

 bromic acid, over oil of vitriol, large and beautiful, but very deliques- 

 cent tabular crystals are deposited. 



0.7281 gram gave 0.8349 gram AgBr and 0.2444 gram DioOa. 



In percent: ^ , 



' Calc 



Di 28.71 Î42 28.98 



Br 48.79 240 48.98 



H2O (22.50) 108 22.04 



100.00 490 100.00 



Spec. Grav: 



0.6557 gram, large crushed crystals, temp. 20'*.7 sp. Gr. 2.803 

 0.7245 » » » » » » » » 2.817 



Mean of both determinations: 2.810. 

 Molecular volume: 174.4. 



