66 JOURNAL OF THE 



Barium octylthiovhendiGarhonate. — The salt was prepared from 

 an aqueous solution of the acid and pure barium carbonate. It is 

 easily soluble in hot water and crystallizes in needles. 



Calculated for C14H18SO4 Ba. i^HoO Found. 



Ba 30.71 30.89 



H20 5.99 5.97 



Copper octylthiophendicarhonate. — The ammonium salt of the 

 acid gave with a solution of copper sulphate a yellowish green crys- 

 talline precipitate, difficultly soluble in cold water, easily soluble in 

 hot. 



Calculated for C14H18SO4 Ca. 2^ HgO Found. 



Cu 16.13 16.37 



HoO 12.40 12.66 



Silver octyUMopTiendicarhonate. — The ammonium salt causes in 

 a solution of silver nitrate a yellow crystalline precipitate, which is 

 difficultly soluble in hot water. It soon changes to red-brown in 

 the light. 



Calculated for Ci4HigS04 Agg. 3H0O Found. 



Ag 39.40 39-36 



H20 9.77 9.71 



A solution of the ammonium salt gave with a concentrated solu- 

 tion of zinc sulphate a yellowish white precipitate. With manga- 

 nese sulphate solution a precipitate formed, "insoluble in cold water, 

 difficultly soluble in hot water. With ferric chloride a yellow pre- 

 cipitate was gotten. 



Preparation of methyloctylthiophen. — To solve the problem with 

 which I started, I proceeded as follows : This preparation took place 

 in accordance with the directions of Fittig. 27 g. iodthiotolen (j3j3) 

 25 g. octylbromide, 5 g. sodium and double the volume of ether 

 were used. The reaction soon commenced and seemed to be com- 

 pleted in about twelve hours. Fractionation of the resulting pro- 

 duct yielded an oil boiling at 270 — 275^. In the cold it solidified 

 to crystals. These were pressed and analyzed : 



Analysis. — 0.1229 g- substance yielded 0.500 g. barium sulphate or 0.00686 

 g. sulphate. Hence p. c. sulphur = 5. 68; calculated for Cj 3 H32S 

 p. c. sulphur = 15.24. 



