178 
Estimation No. 1 gave 64*30 per cent, of silver. 
„ No. 2 „ 64*25 
„ No. 3 „ 64*36 „ „ 
„ No. 4 „ 64*60 „ „ 
Calculated from the formula of acetate of silver ) q 
A g.j 
yields 64*68 per cent, of silver. 
That portion of the mixed chlorides which distilled above 
30° C. was fractionated, when two-thirds of the total volume 
distilled over between 57°-59° C. The specific gravity was 
found to he 1*198 at 6*5° C. Eegnault found the Sp. Gr. to 
be 1*174 at 17° C. and the boiling point to be 64° C. (Ann. 
Ch. Phys. [2] LXXI. 355)* Submitted to analysis the fol- 
lowing numbers were obtained. 
No. 1. 0*5206 grm. gave 0*3691 grm. of chlorine. 
No. 2. 0*4491 „ „ 0*3186 „ 
No. 3. 0*4292 „ „ after drying over stick 
potash for a week, 0*3010 grm. of chlorine. 
Per centage of chlorine found by No. 1, 70*89 
No. 2, 70*94 
„ » 3, No. 3, 71*76 
The percentage required by the formula j 0 f mono- 
chlorinated ethyl chloride is 71*73. 
Hence the mono-chlorinated ethyl chloride was formed in 
quantity by the action of excess of chlorine on di-methyl. 
Having commenced the examination of the di-methyl 
obtained, 1st by Franldand’s method from iodide of methyl 
and zinc, and 2nd by Schutzeuberg’s process, I hope to 
communicate the results to the Society. 
* Beilstein (Ann. Chem. PJiarm. V. 113-110j has shewn that mono-chlori- 
nated ethyl chloride, and chloride of ethyleden, obtained by action on alde- 
hyde with perchloride of phosphorus, are identical, the boiling point of the 
latter as observed by Wurtz is 58-59, and the specific gravity as determined 
by Greuther is 1*189 at 4*3° C., these numbers agree with those I found. 
Beilstein remarks that the higher boiling point as observed by Eegnault would 
result from the presence of higher chlorinated products. 
