DERIVATIVES OF ETHYL ALCOHOL. 55 



Ethyl sulphide, when heated, combines readily with 

 ethyl iodide, forming triethyl sulphiodide (C 2 H 5 ) 3 SI, a 

 crystalline substance, easily soluble in water and alco 

 hol, which, when treated with silver oxide and water, 

 yields triethyl sulphhydroxide (C 2 H 5 ) 3 S.OH. Indistinct 

 deliquescent crystals. Strong base, combines with 

 acids forming well characterized, easily soluble salts. 



Ethyl bisulphide, (C 2 H 5 ) 2 S 2 , is produced when ethyl 

 chloride is conducted into an alcoholic solution of potas 

 sium bisulphide, and by the action of iodine on sodium 

 mercaptide. Liquid, boiling at 151. When shaken 

 with dilute nitric acid, it yields ethyl disulphoxide 

 (C 2 H 5 )S 2 2 , a liquid, which cannot be distilled without 

 decomposition. 



The corresponding selenium and tellurium com 

 pounds are produced in a similar manner to the sul 

 phur compounds, potassium selenide or telluride being 

 employed instead of the sulphide. 



Selenmercaptan, C 2 H 6 Se. Colorless, thin liquid, 

 with an insupportable odor ; with mercury oxide it 

 also yields a mercaptide. Ethyl selenide (C 2 H 5 ) 2 Se. 

 Pale yellow liquid, with an exceedingly repulsive odor, 

 heavier than water. Is oxidized by nitric acid, the 

 action being accompanied by an evolution of nitrogen 

 binoxide; from the resulting solution hydrochloric 

 acid precipitates ethyl chloroselenide (C 2 H 5 ) 2 SeCl 2 , a pale 

 yellow, heavy oil. 



Ethyl telluride, (C 2 H 5 ) 2 Te. Eeddish-yellow liquid, 

 heavier than water, of insupportable odor. Is dissolved 

 by nitric acid as tellurethyloxide nitrate. From this 

 solution hydrochloric acid precipitates an oily, color 

 less substance, tellurethyl chloride (G 2 W)^QG\ 2 \ hydriodic 

 acid, an orange-yellow, powdery substance, tellur ethyl 

 iodide (C 2 H 5 ) 2 TeI 2 . Aqueous ammonia decomposes the 

 chloride, forming ammonium chloride and an oxichlo- 

 ride (C 2 H 5 ) 2 TeCl 2 -f (C 2 IP) 2 TeO, which crystallizes in 

 colorless and inodorous prisms. The iodide conducts 

 itself in a similar manner. 



