found in crude Platina. 427 
(G 3.) The whole quantity was then treated in the same 
manner, and purified by cupellation with borax, till it cooled 
with a bright surface. From the globule the sulphur was ex- 
pelled, by exposure to the extremity of the flame; and it became 
spongy and malleable, weighing in this state very nearly 5 
grains. 
(G 4.) A portion of this metal was dissolved in strong nitrous 
acid, was precipitated by green sulphate of iron, and, in other 
respects, possessed all the properties ascribed to the palladium 
offered for sale, in the printed paper that accompanied it, as well 
as others since noticed by Mr. Chenevix. 
(G 5.) In its precipitation by prussiates, it differs most essen- 
tially from platina ; and consequently is by no means difficult 
to be distinguished, or separated from it. 
(G 6 .) The action of muriate of tin upon the solutions of 
these metals, is also totally different. A dilute solution of platina, 
is thereby changed from a pale yellow to a transparent blood- 
red. A solution of palladium, on the contrary, usually becomes 
opaque, by the formation of a brown or black precipitate ; but, 
if mixed in such proportion as to remain transparent, it changes 
to a beautiful emerald-green. 
(G 7.) In the formation of triple salts with the alkalis, as 
observed by Mr. Chenevix, palladium may be said to resemble 
platina; but the salts thus formed are far more soluble than 
the corresponding salts of platina, and differ entirely, in the 
colour and form of the crystals. 
(G 8.) The soda-muriate of palladium is a deliquescent salt ; 
- that of platina, on the contrary, forms permanent crystals. 
(G 9.) The triple salts of platina, with either muriate of 
ammonia or of potash, form octaedral crystals of a yellow 
