: 
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3 
Messrs. Wohler and Dean on Tellurmethyle. 319 
centrated solution of soem ce of baryta. The reaction 
goes on very easily of its own accord, very little heat being re- 
quired, and the distillation is continued as long as oil drops are 
seen to go over with the wate 
Tellurmethyle is a pale oan yellow, oily, very mobile liquid, 
heavier than water with which it is not miscible. Its smell is 
about 82°C.* Its gas is ore like that of tellurium itself. 
Exposed to the air it smokes feebly in consequence of oxyda- 
tion. Set on fire it burns with a clear, luminous, bluish white 
flame forming copious vapors of tellurous acid. Tellur rmethyle, 
C:H;Te, behaves like tellurethyle, as a radical, or so to speak as 
ametal. It forms a basic oxyd and the corresponding haloid com- 
pounds. Its elementary analysis was considered superfluous, as 
its constitution can be safely ot oo from its compounds, 
which are also.much easier to analyz 
Oxyd of Tellurmethyle—C: "HsT'e0. —This is formed when 
t@lurmethyle is heated with somewhat strong nitric acid. At 
first it is partially dissolved imparting a reddish yellow re to 
the liquid, then there takes place a strong reaction, and we 
a colorless solution of oxyd of tellurmethyle, nitrous ead ges 
being evolved. After careful evaporation, the salt is obtained in 
colorless, prismatic crystalst. It is easily soluble in water and in 
alcohol. By heating it is decomposed, flashing like gunpowder. 
tis the material for: the formation of all the other compounds. 
We found however that the simplest method for preparing oxyd 
of tellurmethyle was not from this salt, but from the ae or 
ine compounds, by decomposition with oxyd of silve he 
pound was covered with a little water, and oxyd “of silver 
freshly precipitated by means of baryta water, and well washed, 
S mixed with it in excess. The decomposition stews in- 
Stantly and is attended by spontaneous warming 0 
In the fluid filtered from the iodid or chlorid of silver, ayia of 
urmethyle is contained in solution. Ge? 
Oxyd of tellurmethyle is, when evaporated to dryness, indis- 
tinctly crystalline, Exposed to to the air it evaporates, absorbing 
* ° the e 
her oe thensetiyie ata sip beige a ener eee Ss Pus tise: 
ethane plunged int» this, but into shh of techick the very thin tube containing the 
aus pe das was placed and heated. 
¢ 80° C,, as the boilin t, according t gh) sc ccambcabubate Met 
be abo Penne point of scaiccmathyast cael not yet determined by experiment wed 
about 99) 
x_iSemetines, bably either by the of too much or too strong an 
acid, we obtained by Dane not a etal salt, but a transparent, amor- 
Phous mass. In this case it coritained, as it appeared, in consequence of the decom- 
Postion ofa part of the methyle, fellervos sckd, either merely as a mixture or in 
