Standard X-ray Diffraction Powder Patterns: Section 7. Data for 81 Substances Page: 78
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Thallium Nickel Sulfate Hexahydrate, TI2Ni(SO4)2 -6H20 (monoclinic)
Sample
The sample was prepared by slowly evap-
orating an equimolar solution of T12SO4
and NiSO4 .
Color
Unground: strong bluish green
Ground: very pale green
Optical data
Biaxial (-) Na=1l.602, N =1.615, Ny=1.620
2V is large
Structure
Monoclinic, P21/a (14), Z=2, isostruc-
tural with other "Tutton's salts" [Tut-
ton, 1925]. The structure of a Tutton
salt, (NH4 )2Mg(SO4)2 *6HO20, was determined
by Margulis and Templeton [1962].
Lattice constants
a(A) b(A) c(A) (o)
BS,
sample
at 25 C 9.166 12.392 6.216 106020'
+.001 .002 +.001 1'
Density
(calculated) 3.763 g/cm3 at 250 C.
Reference intensity
I/1corundum 38
References
Margulis, T. N. and D.H. Templeton (1962).
Crystal structure and hydrogen bonding
of magnesium ammonium sulfate hexahy-
drate, Z. Krist. 117, 344-357.
Tutton, A.E.H. (1925). The monoclinic dou-
ble sulfates containing thallium - thal-
lium nickel and thallium cobalt sul-
phates. Proc. Roy. Soc.London SerA 118,
240-261.0
Internal standard Ag, a = 4.08641 A
0
CuKa1 A = 1.54056 A; temp. 25 C
d (A) I hkl 28(o)7.18
5.95
5.37
5.06
4.39
4.294
4 . 209
4.139
3.926
3.740
3 .587
3.396
3.353
3.142
3.097
3.046
3.007
2. 982
2.923
2.901
2.872
2.853
2.802
2.774
2.749
2.727
2.651
2.607
2.554
2.534
2.501
2.480
2.421
2.406
2.391
2.290
2.244
2.221
2.205
2.199
2.160
2.148
2.126
2.106
2.07118
8
13
22
2
8
30
100
5
51
1
1
6
15
22
16
47
5
6
18
16
11
9
10
6
7
5
2
1
2
5
16
24
12
6
16
6
8
15
14
8
6
4
8
5110
001
011
120
200021
121
111,201,+
211
130
220,121
031
131
201
040
211
131,112, +
002
231,140
l11,012
202
310
221
122
041
141
320
222
112
240, 141
231
132,241
331,312,+
122
330
322,051
411
321
132,241
400,202
250,151
341,042
251
242
420,222,+12.31
14.88
16.49
17.50
20.20
20.67
21.09
21.45
22.63
23.77
24.80
26.22
26.56
28.38
28.80
29.30
29.68
29.94
30.56
30.80
31.11
31.33
31.91
32.24
32.54
32.81
33.78
34.37
35.11
35.40
35.87
36.19
37.11
37.35
37.58
39.31
40.15
40.59
40.90
41.00
41.79
42.02
42.48
42.91
43.6678
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Swanson, H. E.; McMurdie, H. F.; Morris, M. C. & Evans, E. H. Standard X-ray Diffraction Powder Patterns: Section 7. Data for 81 Substances, report, September 1969; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc13215/m1/84/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.