320 Messrs. Wihler and Dean on Tellurmethyle. 
also carbonic acid. It has a disagreeable taste but is without 
sm ts solution reacts strongly alkaline upon red litmus paper. 
of sulphate of copper a voluminous blueish precipitate. From 
its solution, sulphurous acid precipitates oily drops evolving the 
peculiar smell of tellurmethyle. Hydrochloric acid precipitates 
white chlorid of tellurmethyle, and hydriodic acid, the red iodid. 
. Sulphate of oxyd of tellurmethyle, is formed by the immedi- 
ate saturation of the base with the acid ; ‘it crystallizes in trans- 
parent, somewhat large and regular cubes, is very soluble in wa- 
ter, but insoluble in alcohol. The other salts we were unable to 
form from lack of material ; we could only observe that the salts 
of oxalic, tartaric, acetic and formic acids were very soluble. 
Chlorid of Feliurmethyle—C2H sTeCl.—It is formed as a vo- 
luminous white 
amorphous nitrate, it contains tellurous acid either in admixture 
orin combination. With bichlorid of platinum it gives no pre- 
cipitate. % ' . 
Oxychlorid of Tellurmethyle—C2H 3 TeO + C2H;TeCl.— 
This is formed by dissolving the chlorid in ammonia, after evap- 
orating a mixture of chlorid of ammonium the oxychlorid is 
obtained. These can be easily separated by means of strong al- 
cohol. The oxychlorid forms colorless short prisms. Hydro- 
chloric acid precipitates from its solution the chlorid. 
Bromid of Tellurmethyle—C2H:»TeBr.—It is formed in the 
same way as the chlorid, which it very much resembles and with 
which it is perhaps isomorphous. It forms shining, colorless 
prisms and melts at'89° ©. ; 
Todid of Tellurmethyle—C2HsTel.—If colorelss hydriodic 
acid, or a solution of iodid of potassium is dropped into a solution 
of the nitrate or chlorid of tellurmethyle, a bright .citron yellow 
precipitate is formed, which after a few moments changes to 4 
vermilion color. If the solutions are mixed while still warm, . 
the precipitate becomes immediately red and crystalline. Af 
drying it forms a vermilion colored, crystalline powder. ‘The 
iodid was used for determining the constitution of tellurmethyle. 
The carbon and hydrogen were estimated by combustion with 
oxyd of copper ; the iodine by dissolving the compound : 
