On the Properties of Telluramyl and Selenmethyl. 247 
dissolves by heating; on cooling it is deposited again as a ver- 
million powder, from which nitric acid removes the iodine. 
tyd.—The chlorine compound, treated with oxyd of silver 
and water, formed a strongly alkaline solution, depositing chlorid 
of silver. ‘The solution on being evaporated to a syrupy cousist- 
euice possessed strong alkaline properties, evolving ammonia from 
chlorid of ammonium. On the addition of hydrochloric acid the 
chlorid was formed. Sulphurous acid reduced reddish yellow 
drops of telluramyl. 
Sulphate.—Obtained by treating the oxyd with sulphuric acid: 
on evaporation the salt crystallizes in groups of small colorless 
prisms, 
2. Selenmethyl. C2H:Se. 
tellurium. Itis to be regretted that, owing to the small quantity 
of material, we had to work with, these experiments are very 
incomplete ; but they appear to be sufficient to indicate that the 
radical selenmethyl is possessed of very remarkable properties, 
and will serve to form the groundwork at least of future and 
more complete investigation. ' 
‘he method employed sin preparing selenid of potassium was 
the following. Powdered selenium was converted into selenious 
acid by the action of concentrated nitric acid, the solution evap- 
crated until all the nitric acid was expelled, and a mass of white 
needle crystals of selenious acid remained sublimed in the flask. 
he selenious acid was then dissolved in water and saturated 
with potassa, the solution mixed with finely powdered charcoal, 
evaporated to dryness, and heated some time in order to expel as 
much water as possible from the porous mass. ‘The mass was 
then very gently heated in a glass retort: the reduction took 
Place at quite a low temperature, attended by vivid deflagration 
Spreading itself gradually through the whole mass, which glowed 
and shrank almost as if fused: so vivid was the deflagration that 
4 small quantity of metallic selenium was lost, going forth from 
the neck of the retort in copious red vapors. After the retort 
* Aon. Chem. Pharm, lxxxvi, 35. + Ann. Chem. Pharm, baxxiv, 69. 
+ Ann. Chem. Pharm, xciii, 223. ae 
