Cesium Zinc Sulfate Hexahydrate, Cs Zn(SO42 -6H20 (monoclinic)

Sample
The sample was prepared by slow evapora-
tion at room temperature of an equimolar
solution of Cs2SO4 and ZnSO4.
Color
Colorless
Optical data
Biaxial (-) Na=1.594, NP=1.610, Ny=1.615
2V is large.
Structure
Monoclinic, P21/a (14), Z=2.
Cs2Zn(SO4)*2-6H20 is a "Tutton Salt"[Tut-
ton, 1893]. The structure of a   "Tutton
Salt",  (NH4)2Mg(SO4)2'"6HaO was  deter-
mined by Margulis and Templeton, [1962].
Lattice constants
a(A)   b(A)     c(A)    a(o)
NBS,
sample
at 250C  9.316   12.815   6.373  106057'
.001    002    .001      il'

Density
(calculated) 2.881 g/cm3 at 250 C.
Reference intensity
/Icorundum =  2.3

D
Internal standard Ag, a = 4.08641 A
OO
CuKa  A = 1.54056 A; temp. 25 C
d(A)       I         hkl         20(o)

7.31
6.095
5.504
5.202
4.451
4.416
4.337
4.227
4.019
3.854
3.660
3.461
3.204
3.185
3.087
2.962
2.951
2.896
2.850
2.816
2.749
2.695
2.678
2.601
2.552
2.479
2.452
2.439
2.362
2.351
2.321
2.284
2.256
2.229
2.222
2.209
2.194
2.170
2.135
2.105

10
16
100
5
60
4
9
25
15
65
20
20
11
30
6
2
5
4
6
18
30
8
4
9
8
2
7
19
8
9
4
7
11
2
8

110
001
011
120
200

021
121
201
211
130
121,220
131
040
201
131,112+
311
202
310
122,221
141
321,022
320
222
240,112,+
231,132
331,312
122
330
051
322, 151
401
411
132,142,+
400
151,250
042
410,251
242
060
420

12.10
14.52
16.09
17.03
19.93
20.09
20.46
21.00
22.10
23.06
24.30
25.72
27.82
27.99
28.90
30.15
30.26
30.85
31.36
31.75
32.54
33.21
33.43
34.45
35.13
36.21
36.62
36.82
38.07
38.25
38.76
39.41
39.92
40.43
40.56
40.81
41.11
41.59
42.30
42.94

25