286
OWE BERG, GAUKLER, AND SQUIER
Table 1—-SUMMARY OF EXPERIMENTAL RESULTS
Dependence of delay
Solid used
time on voltage
For results
Borosilicate glass
t independent of V
Table 2
Copper with a drop
tV = 6, polarity effect not studied
Fig, 17
Copper
tV* = 1.27, no polarity effect
of 12N HNO,
solution
Magnesium
tV = 5.33, Mgt, H,O7
tV = 9.50, Mg~, H,Ot
Steels
Fig. 11
Dependence on treatment
NaCl saturated
solution
Figs. 12 and 13
tV = 6.30, tV? = 58.3,
NaClt, H,O7
Table 4
Figs. 14 to 16
Figs. 7 and 8
tV = 7.80, tv? = 77.0,
Figs. 9 and 10
NaCl dry crystals,
3 and 45%
tV = 2.33, NaCl*, H,O7
tV = 3.78, NaCl-, H,Ot
Fig. 4
Fig. 5
NaCl dry crystals,
tV = 1.96, NaCl7, H,0*,
Fig. 6
NaCl-, H,Ot
relative humidity
60 to 65%
no appreciable polarity
relative humidity
effect
NaCl dry crystals,
Erratic
75% relative
humidity
sor
:
:
Fig. 6
_
°
o
2.0
_
>
LOL
0 on
0
°
4
20
°
+
1
kL:
40
y?
60
i
80
Fig. 3—Rate of coalescence
vs. V? tor a pair of water
drops.
100
These results differ markedly from those obtained in the previous in-
vestigation,’ tV = 3.85 and tV’® = 78.5. At least part of this difference
may be attributed to the temperature difference, the previous data
being taken at a considerably higher temperature, but this phenomenon
was not investigated. It is of little significance to the purpose at hand.
The new data for the pair of water drops were obtained under the same
conditions as the other data taken in this investigation, with which they
should be compared.
A few comments are warranted concerning the special conditions
for the experiments and the treatment of samples. The measurements