|
|
|
|
90%
Silver
Bags The most popular way to invest in silver bullion is the 90% U.S. silver bags. They weigh 54 pounds and are sometimes called "junk" silver bags which is misleading. This unfortunate name was developed in the 1970s and used to describe a bag of average circulated silver coins, meaning the investor was not to think there were any rare coins included. There are several advantages when acquiring bags of silver. First they provide small increments of barter. Secondly, the bag carries a low premium over spot silver. Thirdly, they are legal U.S. tender.
Silver
is a
soft
white
metal
which is
denser
than
copper
and has
a lower
melting
point.
Coinage
silver
in the
United
States
has been
typically
90%
silver
and 10%
copper.
The
compound
silver
nitrate
(AgNO3)
is used
to
cauterize
sores
and
wounds.
It is
easily
converted
to
metallic
silver
by
contact
with
organic
matter,
such as
skin or
cloth,
and is
used in
making
indelible
ink.
The
silver
ion
makes an
excellent
antiseptic,
so
several
silver
compounds
are used
medically
as
germicidal
agents.
Fine
grains
of
silver
bromide
suspended
in a
thin
layer of
gelatin
forms a
photographic
emulsion.
The
emulsion
is
formed
on a
sheet of
cellulose
acetate.
The
silver
bromide
is light
sensitive,
and
undergoes
photochemical
decomposition.
The
gelatin
increases
this
light
sensitivity,
perhaps
because
of the
sulfur
in it.
The
decomposed
silver
bromide
registers
an
image,
and
development
with an
alkaline
solution
of an
organic
reducing
agent
like
hydroquinone
causes
the
sensitized
grains
to be
reduced
to
metallic
silver,
while
unexposed
grains
remain
unchanged.
The
undeveloped
grains
of
silver
bromide
are
removed
by a
fixing
solution
containing
the
thiosulfate
ion,
which
forms
the
soluble
silver
thiosulfate
complex.
The
negative
can then
be
washed,
leaving
the
silver
image.
| |||||||||||||||||||||