Monosulphid of Potassium and Bromid of Ethylene. 391 
tance distils in great abundance, while a large quantity of brom- 
hydric acid is given off. Above 205°C. the distillation of the 
Stallized substance nearly ceased, and the small pets 
Which passes over from 205° to 240° is mixed with a yellow oil, 
of which not enough was obtained to determine its properties. 
t this temperature a trace of sulphuretted hydrogen, besides 
bromhydric acid, is found in solution in the water. 
