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The electrochemical equivalent of pure silver - a value of the Faraday
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Object Description
Rating
Title
The
electrochemical
equivalent
of
pure
silver
-
a
value
of the
Faraday
Author
Bower
,
V.E.
;
Davis
,
R.S
.
SeriesTitle
Journal
of
Research
of the
National
Bureau
of
Standards
Date
1980-05
Language
English
Keywords
Coulometry
;
electrochemical
equivalent
;
electrochemistry
;
Faraday
;
fundamental
constants
;
silver
.
Abstract
Oxygen-free
high-purity
samples
were
used
in a
precise
determination
of the
electrochemical
equivalent
of
silver
. A
comprehensive
mass
spectrometric
analysis
for
impurities
was
performed
.
Our
value
agrees
well
with
prior
measurements
of the
same
quantity
at the
National
Bureau
of
Standards
(NBS)
by
Craig
and
coworkers
.
We
find
the
electrochemical
equivalent
of
pure
silver
to be
1.1179648
mg
C-1NBS
.
Attached
to this
figure
is
an
uncertainty
whose
random
component
(standard
deviation
of the
mean
of
8
determinations)
is
9.5
X
10-7
mg
C-1
(0.85
ppm)
. The
root-sum-square
of
systematic
uncertainties
of
known
origin
is
1.07
X
10-6
mg
C-1
(0.96
ppm)
. The
above
value
for the
electrochemical
equivalent
of
silver
leads
us to
calculate
the
Faraday
to be:
F
=
96486.33
(24)
ANBS
s
mol-1
(2.5
ppm)
.
Publisher
National
Bureau
of
Standards
ISSN
0160-1741
Volume
85
Issue
3
Page
175
Cite
J
.
Res
.
Bur
.
Stand.
,
Vol
.
85
,
No
.
3
,
p
.
175
Rights
The
Journal
of
Research
of the
National
Institute
of
Standards
and
Technology
is
a
publication
of the
U.S
.
Government
. The
papers
are in the
public
domain
and are not
subject
to
copyright
in the
United
States
.
However
,
please
pay
special
attention
to the
individual
works
to
make
sure
there are
no
copyright
restrictions
indicated
.
Individual
works
may
require
securing
other
permissions
from the
original
copyright
holder
.
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