Samarium. 11 



The analysis has ah-eady been published') and gave in percent: 



Calc 



Pt 24.28 195.0 24.92 



Sm 19.52 150.0 19.17 



CI — 248.5 — 



H^O — 189.0 — 



782.5 

 Sp. Grav: 



0.4312 gram, crystals, pressed between paper, t" 21''8 sp. Gr. 2.714 

 0.7531 » » » y> )■> )> » y> 2.709 



Mean of both determinations: 2.712. 



Molecular volume: 288.5. 



Chloroaurate of samarium 



SmCls + AuCla + lOH^O. 



On slowly evaporating over oil of vitriol the mixed solutions of 

 the chlorides of samarium and of gold, large, thick, and well formed 

 rhombic tablets of yellow colour are deposited when the solution be- 

 comes very concentrated. They are easily soluble and deliqvescent. 



0.4668 gram was treated with zink and a little dilute sulphuric 

 acid. The remaining gold was washed with jvater and finally with di- 

 lute hydrochloric acid. 0.1243 gram Au and 0.5390 gram AgCl were 

 thus obtained. 



0.7998 gram was decomposed with sulphurous acid and evapo- 

 rated to dryness. The residue consisting of gold and samarium sul- 

 phate (Sm2 3S04) weighed 0.5308 gram and when treated with water 

 left 0.2127 gram Au. 



1) Journ. of the chemical society n' CCXLIX, p. 367. 



