317 
— 
the halogen compounds in II, where for W/aj the full value 9.10? 
was found — we shall still examine SbH,. 
| | | / 2 | 
T, by, „105 aj. 104 ‚Kaj. 10? | 
| | | | 
SbH3 446 | 2504-334352 | 201,3 142 .|Sb=46 
The critical temperature of SbH, was calculated from 7’, = 255° 
abs., which gives 77.=446° abs. with 7:17, =1,75 (see for AsH,). 
We therefore find for Va; about half the normal value 9. Note- 
worthy is the fact that when again we take for AsH, for H not 
3,2, but the half value 1,6, we should have found Sb = 9,4 .10-2, 
i.e. about the normal theoretical value. 
e. Bismuth. According to Apams and Jounston (1912) the melting 
point lies at 271°,0 C.=544°,1 abs. (Ea@qink found 271°,5 in 1908). 
The boiling point lies at 1485° C., according to Barus (1894), 
whereas GreEKNWooD (1910) found the somewhat lower value 
1420° C.=1693° abs. With 1,75 as factor 7; would, therefore, be 
— 2963°. If we assume in round numbers 2960°, the value 1271. 
.10-+: m, follows for a, from 77,= 786 nz Xx az: by with 6 =0,910, 
bp. Ue NO : hence Va = 35,65 OTE: Vn. 
Just as for Sb, this points to n;=1, so that we find the high 
value 85,6. 10? for the atomic attraction of Bismuth. 
For 2y we find the value 3,068, hence y=1,534, from our 
approximate formula. In consequence of this, f, becomes with 
m, = 544,1 : 2960 = 0,184: 
i, = 3068 E bates < 0 184 | —= 3,068 (—?, 111) = 2 727 
BPS BT; 2,534 edie Arta ltd 
on account of which fu, assumes the value 14,83 with u, — 5,44. 
Nowe Pd bin 104 a; =. 30,05: 102 “hence 4/47 — 0,0952 
If ‘further nj, =1, n, 4 (ie. if at the ‘triple point 271° C)the 
liquid-solid bismuth —Bi,), then a, 2, : ar 7,—=0,381, hence y=5,65. 
Apams and Josnston (1912) found D = 9,802 for the density at 
15°, KanrBaum (1902) gives 9,791. By an electrolytic way (CLASSEN, 
1890) 9,747 was found, and HÉrarp gives 9,483 for amorphous 
bismuth (contained 0,4°/, O,). At the melting-point Vicentin1 and 
Omopr! (1888) give the value 9,673 for the solid bismuth, 10,004 
for the liquid bismuth. (Roperts and Wrientson had found the almost 
identical value 10,039 in 1882). 
