82 W. P. Dexter on the Sulphates of Antimony. 
moir, Mr. Péligot infers that the salts of antimony, i 
of uranium, depart from the recognized law, according tow 
oxyds containing three equivalents of oxygen require the st) 
number of atoms of acid to form a neutral salt, The existelt) 
of such a sulphate of oxyd of antimony is denied by bm) 
“En effet il ne m’a pas <té possible de rencontrer un seul } 
contenant ‘3 équivalents d’acide combiné avec 1 Gquivalest 
d’oxyde d’antimoine; de sorte que pour les sels d’antimoine,t 
méme que pour les sels jaunes d’urane, toutes les formules® | 
culées dans les tables d’équivalents de M. Berzelius représil 
des sels qui n’existent pas.”* wii : 
But the neutral salt may be prepared in another way, | 
as to leave no doubt of its existence, By careful heating,” ; 
a crucible, of the oxyd, or oxychlorid of antimony,, wilt 
drawn: as us 
lation, a drop of acid remained, and deprived of its es 
any air which might through it, A siatinans crucible, vu 
wit od as a bath, and was covered with 4 § 
age of the neck, over which # 
heat was such as just to 
> “ant [two grams of oxychlorid lasting several hours : the oa 
blowpipe. The product was a coherent, friable mass, crys 
line on the surface to the naked eye | 
@ preparation made from the oxyd, 0-4471 gave 0-283 
SbO, and 05953 fal: of « salt slide No Alparoth powder 
0°6177 gave 03946 SbS, and 0°815 BaS: in the hundred, 
Calculated. ie 2. 
SbO, 94 54-24 54°88 
so, 4506 45°72 45°31 
100-00 99:96 100°19 
* Ann. Ch. Phys., 3d Ser., xx, 297. 
