pvs.t
t/°C P/gPa
–38 .83 0 .000
–35 .00 0 .074
–30 .00 0 .171
–25 .00 0 .268
–20 .00 0 .365
–15 .00 0 .463
–10 .00 0 .560
–5 .00 0 .658
0 .00 0 .757
5 .00 0 .856
10 .00 0 .955
15 .00 1 .055
20 .00 1 .156
25 .00 1 .257
30 .00 1 .359
tvs.p
P/gPa t/°C
0 .010 –38 .32
0 .020 –37 .80
0 .050 –36 .25
0 .100 –33 .66
0 .200 –28 .50
0 .300 –23 .35
0 .400 –18 .21
0 .500 –13 .08
0 .600
–7 .97
0 .700
–2 .88
0 .800
2 .18
0 .900
7 .23
1 .000
12 .24
1 .100
17 .23
1 .200
22 .19
MELTINg CURVE OF MERCURY
The solid–liquid phase boundary of mercury provides a conve-
nient means of calibrating pressures up to 1 GPa in the neighbor-
hood of room temperature . The best representation of this curve
is given by:
p/GPa = 1 .932845 • 10
–2
d + 1 .8333 • 10
–6
d
2
+ 5 .9791 • 10
–8
d
3
where d = t/°C – 38 .8344 . Temperature is on the ITS-90 scale, and
the relation is valid for pressures up to about 1 .2 GPa . The follow-
ing table is calculated from this equation .
Reference
Molinar, G . F ., Bean, V ., Houck, J ., and Welch, B ., Metrologia 16, 21, 1980;
28, 353, 1991 .
6-147
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