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ANP PROJECT PROGRESS REPORT
46
44
42
40
38
36
34
vmwemmn
ORNL-LR-DWG
32
RbF 20 40 60 80
ZrF4 (mole%)
Fig. 2.3.4. Effect of Composition on Heat of
Vaporization of ZrF, in RbF-ZrF,.
SURFACE TENSION AND DENSITY
OF NaF-ZrF,
F. W. Miles
Preliminary values of he density and surface
tension of NaF-ZrF (5347 mole 96) were obtained
by the maximum-bubtle-pressure method previously
described.' The results are summarized in
Table 2.3.3. Difficulties were encountered as a
result of plugging of the nickel tube above the
capillary tip. In every case the concentration of
oxides and oxyfluorides in the plug material
appeared to be quite high, and thus it is thought
that there was air contamination of the helium
stream. The assembly is being examined in an
attempt to locate and eliminate the source of
'OF. W. Miles, ANP Quar. frog. Rep. March 10, 1956,
ORNL-2061, p 106.
116
lo00
900
800
z 700
I
E
E 600
W
a
~ 5 0 0
W a L
Fm
J 400
200
Kx)
ORNL-LR-WG 7 14639
0
MF IO 20 30 40 50 60 70 80 90 ZrF,
ZrF4 (mole 90)
Fig.2.3.5. Vapor Pressures of MF-ZrF, Mixtures
at 912OC.
240
220
200
I80
I
0
2 460
- E
g (40
3 v)
3 420
L
a
2 100
e
80
60
40
20
0
KCI 40 20 30 40 50 60 70 80 90 FeC12
FeCI2 (mole%)
Fig. 2.3.6. Vapor Pressures of FeCI,-KCI
Mixtures at 850 and 900OC.
.