PROCEEDINGS 
OF 
THE ROYAL IRISH ACADEMY. 
1837. No: 4. 
March 16. 
(Continued from last Number.) 
‘On some remarkable Salts, obtained by the action of 
Ferrocyanide of Potassium on Sulphovinates and Sulpho- 
methylates.” By William Gregory, M.D., F. R.S. E., &c. 
When ferrocyanide of potassium is added to sulphovi- 
nate of lime, a precipitate appears, which, when heated, 
gives off hydrocyanic ether. This salt (called a) contains 
iron, calcium, potassium, cyanogen, and the base of ether. 
The mother liquid is found to contain a salt B, very so- 
luble in water and alcohol, which, also, on being heated, 
yields hydrocyanic ether. The ingredients of B are sulphu- 
ric acid, potash, ether, and cyanogen. 
In order to avoid the confusion which might result from 
the use ofa salt of lime, (as Mosander has shown that ferrocy- 
anide of potassium produces in the salts of lime, generally, 
a precipitate consisting of iron, calcium, potassium, and 
cyanogen,) the author next tried sulphovinate of potash. 
By the action of ferrocyanide of potassium on this salt he 
_ got a salt c, corresponding to a, but different; and another 
Salt p, identical with s. 
When sulphomethylate of lime was employed, two salts 
Eand F were obtained, exactly analogous to a and B: and 
by employing sulphomethylate of potash he got G, corres- 
_ ponding to x, and u, identical with r. 
E 
