30 Mr. C. Schorlemmer on the Derivatives of Propane. [June 17, 



100° and 200° C. To obtain the latter in larger quantities, I took those 

 portions of the substitution-products which boiled above 80°, and passed 

 chlorine into them for several days, having them exposed to direct sun- 

 light, as in diffused light hardly any action took place. By this means a 

 liquid was obtained which boiled between 120° and 200°. Subjected to 

 fractional distillation, the greater portion boiled between 150° and 160°, 

 but it was found impossbile to isolate a compound having a constant boiling- 

 point. The reaction of this liquid, as well as the boiling-point and the 

 analysis, show that it consists of trichlorhydrine, C 3 H 3 Cl 3 , mixed with 

 higher chlorinated products. 



0*2/5 gave 0*8155 silver chloride. 



Calculated for C 3 H 5 Cl 3 . Found. 

 72*20 per cent. CI. 73*34 per cent. 



The reaction most characteristic of trichlorhydrine is that, on heating it 

 with caustic potash, it decomposes into hydrochloric acid and epidichlor- 

 hydrine, C 3 H 4 Cl 2 , a liquid which boils at 100°, and which combines 

 directly with bromine, forming the compound C 3 H 4 Cl 2 Br 2 , the boiling- 

 point of which is 220°. 



On heating the liquid, boiling between 150° and 160°, with powdered 

 caustic potash, a violent reaction set in, and, besides water, a heavy oil 

 distilled over, which possessed the somewhat garlic-like odour of epidi- 

 chlorhydrine, and which boiled between 95° and 105°. The higher chlo- 

 rinated products contained in the original liquid were destroyed by this 

 reaction, carbonaceous matter being left with the potassium chloride in 

 the retort. To the impure epidichlorydrine thus obtained bromine was 

 added; this combined with it with a hissing noise and evolution of heat. 

 On distillation, the greater portion of the compound boiled at 200°-220° ; 

 the part boiling between 215° and 220° was analyzed. 



0*1835 of this compound gave 0*4455 of a mixture of silver chloride 

 and silver bromide. 



0*2955 of this mixture left, on heating it in a current of hydrogen, 

 0*1928 silver. 



Calculated. Found. 



C 3 36 13*28 



H 4 4 J *48 



Cl 2 71 26*20 26*3 

 Br 2 160 59*04 58*2 



271 



These experiments prove sufficiently that the liquid boiling between 

 150° and 160° contained a large proportion of trichlorhydrine. It is 

 noteworthy to remark that the substitution-products of the primary pro- 

 pyl chloride are identical with those of the secondary chloride, as, according 

 to Linnemann, on passing chlorine into isopropyl iodide, the products 



