148 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Properties of Bromdinitroresorcine DietJnjlether^ melting at 81°-82°, 

 C6H(C2H50)2Br(NO.)2. 



It forms when crystallized from alpohol white needles or slender prisms 

 terminated by two planes at an obtuse angle to each other, which turn 

 brown on exposure to the light. It melts at 8l°-82°, and is very soluble 

 in benzol, or chloroform ; soluble in methyl alcohol, acetone, glacial acetic 

 acid, or carbonic disulphide; slightly soluble in cold ethyl alcohol, more 

 soluble in hot ; slightly soluble in ligroin. Alcohol is the best solvent for 

 it. It is not acted on api)arently by strong hydrochloric acid, either hot 

 or cold ; strong sulphuric acid does not act in the cold, but when warm 

 dissolves it with a brownish red color; strong nitric acid does not actiu 

 the cold, but gives a colorless solution with it when hot. 



That this bromdinitroresorcine diethylether was not the only organic 

 product of the reaction of sodic ethylateon trichlorbromdinitrobenznl wmc 



