Physics and Chemistry. 423 
Its formation from carbonic dioxyd and potassium mercaptid, as 
well as from carbonylic sulphid; its decomposition also, both by 
heat and in watery solution, prove that it contains the radical €6. 
But while its decomposition into ethylic sulphid by the action of 
heat would seem to indicate that the sulphur was united with the 
ethyl, its yielding potassic sulphid when heated in aqueous solution 
suggests that the sulphur and potassium are united. Both reac- 
tions render it improbable that the sulphur is held to the car- 
bon by both its units of attraction. Between the two formulas 
eo<ge 2H, and co<ports future researches must decide.— 
Ann. Ch. Pharm., ex|viii, 187, Nov. 1868. G. F. B. 
On carbonylic chlorid, and anew compound of this sub- 
talline mass. g the conditions a second product was ob- 
tained which melted at 130°. The forme c 
minutes. Water decomposes it with effervescence, evolving car 
bonic dioxyd and carbonous oxyd gases, precipitating finely di- 
hloric acid in solution. The 
8 * 
di-platino-carbon lic tetrachlorid, while €OPtCl, would be pl: 
tino-carbonylie dichlorid. Possibly on heating the former com- 
po i h er, thus :-— 
Schitzenberger giv: es also the following syntheses of phosgene : A 
(1.) By heating an excess of carb yd 
