316 
can put Waz at least 32,5. 102. This would probably be also the 
value of the attraction of the isolated atoms Sn, Te, L which 
elements are in the same row of the periodic system with Sb. The 
“residual attraction’, ie. when the atom valencies are saturate for 
compounds, is for all these elements = 9.10, which attraction is 
also found for the atoms of the valenceless Xenon. 
Antimonium is the first element in our successive treatment of 
the different element groups, where the «tom attraction fully manifests 
itself, and it ean, therefore, not only be estimated, but also calculated. 
In our previous calculations of the degree of dissociation we have, 
therefore, assumed the preliminary value 30.10? as correct by 
approximation. 
For the quantity 2y we find the value 3,08, hence y= 1,54 from 
our formula 2 y= 1-+ 0,038) 7). At the triple point m, is = 904,1 : 
: 3000 = 0,301, u, = 3,32, and f, becomes: 
1,54 
f, = 3,08 |! pe. 001 | — 3,08 (1—0,183) = 2,519, 
so that fu, = 8,387. This must now again be multiplied by a, 7, : 
apa. AS. Wu 10 Ka, 32,5 210-4, ds dp | Decne 
= 0,0750. Further n,—1, #, perhaps —8 (for Phosporus and 
Arsenicum 16 had to be assumed for this), hence a, 7, : ar nj — 0,6. 
With this g would become — 5,02. 
For the density of Antimonium at 15° C. 6,618 is given (KAHLBAUM, 
1902). This gwes,ArD 18,46, n= 81,27. 10 °.. The factor br 
which we must multiply to obtain 4; — because m — 288 : 3000 = 
= 0,096, is: 
f= 30 |: — 
We shall, therefore, calculate 81,27 .10-5. 2,902 — 235,8 . 10-5 
for bj, whereas the 6°/, higher value 250 . 10? found for compounds 
was expected. If the density were 6,2') instead of 6,6, or if the 
factor f were slightly higher, in consequence of y being on an 
average e.g. 1,63 instead of 1,54 — which is very well possible, 
as part of the range from 15° to 3000° passes over the solid state 
(viz. 15° to 630°) — then for bz the expected value would have 
been found. 
Of the Antimonium compounds — of these we already treated 
1,54 
—— X 0,096 | = 3,08 (L—0,0582) = 2,902. 
2,54 
—_ 
1) HErARD (1889) actually found the valué 6,22 for amourphous Sb (98,7 °/,). 
But in contradiction to this is the fact that TorpLerR found D,=6,41 at the - 
melting point in 1894, which would have yielded a still lower value for by. 
