696 RHODIUM. 



of the double chloride of these bases. It is nearly insoluble 

 in water, its formula is KO, SO 3 + R 2 O 3 , 3SO 3 . The nitrate of 

 rhodium is formed by dissolving the oxide in nitric acid. It 

 forms a deliquescent salt of a dark red colour, R 2 O 3 -f3NO 5 ; 

 the last salt combines with nitrate of soda, forming dark red 

 crystals soluble in water but not in alcohol, NaO, 

 3N0 5 . 



