Antimony with Chlorine and Sulphur. 127 
I analysed the liquid chloride of antimony exactly in the 
same manner as the solid chloride. By sulphuretted hydro- 
gen I obtained sulphuret of antimony; also orange-coloured, 
ut a little paler than the sulphuret obtained in analysing the 
solid chloride. It contained 5 atoms of sulphur to 1 of anti- 
mony. Treated with dry hydrogen, it is converted into me- 
tallic antimony and sulphur, and sulphuretted hydrogen is dis- 
engaged. I obtained 1:980 grammes (30°6 ers.) of metallic anti- 
mony; and the liquid, separated from the sulphuret and preci- 
pitated by nitrate of silver, gave 11°764 grammes (181°6 grs.) 
of chloride of silver, equivalent to 2-902 grammes (44°8 ors.) 
of chlorine. The chloride of silver, however, contained a little 
more sulphuret of silver than that obtained in the analysis of 
the solid chloride. The result of this analysis is, then, 40°56 
of antimony, and 59°44 of chlorine; which differs from the cal- 
culated result: ‘but the difference is produced solely by the 
sulphuret of silver which is left mixed with the chloride. 
It is not the liquid chloride of antimony that is obtained 
when dry chlorine is passed over sulphuret of antimony con- 
taining 8 atoms of sulphur, but it is the solid chloride of anti- 
mony and -the chloride of sulphur which are formed. The 
chloride of sulphur may be separated from the chloride of an- 
timony by gently heating them in a very narrow-mouthed ma- 
trass: there remains then only chloride of antimony. This is 
the same product which is formed when gray copper is ana- 
lysed by chlorine ; chloride of antimony containing 3 atoms 
of chlorine, and chloride of sulphur containing 2 atoms of 
chlorine only are obtained. There is no double chloride 
formed, the chloride of sulphur remains on the solid chloride 
of antimony. Heated gently, so as merely to fuse the chloride 
of antimony, the latter dissolves completely in the chloride of 
sulphur, and forms with it a homogeneous liquid; but the chlo- 
ride of antimony is precipitated in crystals on cooling. This is 
one way of obtaining large crystals of this chloride; but it must 
be filtered quickly through blotting-paper, to separate them as 
much as possible from the adhering chloride of sulphur. 
It is remarkable that the liquid chloride of antimony is pro- 
duced only by the action of chlorine on metallic antimony, 
but that none is formed if the chlorine is made to act on the 
sulphuret of antimony.* 
II. Com- 
* I several times passed chlorine over sulphuret of antimony, and always 
found the same result, I imagined, for reasons which I shall hereafter 
state, that chloride of antimony with 5 atoms of chlorine was formed. Yet I 
only obtained chloride with 3 atoms, if I drove off the chloride of sulphur. 
I was then induced to believe that 2 atoms of chlorine were separated from 
the chloride of antimony, and had combined with the chloride of pire ; 
with 
