36 P. T. Cleve, 



Propionate of samarium 



SmSCsHäO^ + SHgO. 



This salt, crystallises in small topas-yellow, rhombic tablets, tole- 

 rably soluble in water. It loses all its water of crystallisation at 100°. 



0.6724 gram lost at 100° 0.0855 gr. H^O and gave by ignition 

 0.2797 gram SmgOg. 



1.5953 gram lost at 100* 0.2023 gram. 



In percent: ^ , 



'■ Calc 



Sm^Og 41.60 — 174 ÏlTi 



CeH^^Oa - - 195 - 



H^O 12.72 12.74 54 12.76 



423 

 Spec. Grav: 



1.0454 gram, crystals, temp. 13".2 sp. Gr. 1.786 

 0.6051 » » » » » » 1.784 



0.9918 » » » » » » 1.788 



Mean of the three determinations: 1.786. 

 Molecular volume: 237. 



Anhydrous salt: 



1.3141 gram temp. 14° sp. Gr. 1.894 



Molecular volume : 194.8. 



Ethylsulphate of samarium 



Sm3C2H5,S04 + 9H20. 



The solution obtained by double decomposition of the sulphate 

 of samarium with ethylsulphate of barium deposits, on evaporating it 

 slowly over oil of vitriol, large pale yellow and well formed crystals, 

 which are easily soluble in water. Heated to 100° — 110° the salt is 

 decomposed. The loss, 34 percent, corresponds to 3 mol. C2H5OII and 

 5H2O (33.2 percent). 



0.4253 gram gave O.1809 gram Sm2 3S04. 



