SILVER NITRATE IS MADE (technical)
3 Ag(s) + 4HNO3(aq) → 3 AgNO3(aq)
+ 2 H2O(l) + NO(g)
||Silver metal from assay samples
|From scrap pieces of sterling and coin silver
||From silver salts and compounds
||The metals are dissolved in nitric acid
then neutralized with pure silver metal.
||Crystals of silver nitrate are separated
from the liquid
||The crystals are cleaned off with acid or
||The crystals are dissolved again and the
solution is filtered, the filtrate is re-crystallized.*
||The now white crystals are rinsed in a
rinsing solvent (this removes impurities,
neutralizes, aids in drying and anti-caking)
||The now purified silver nitrate is quick
dried and stored for packaging
|* the crystals are graded; if not pass, steps 3 & 4 are
repeated until considered a high-grade reagent.
|Pure Silver is generally supplied in ingots containing
999 parts to 1000, and are sold by the troy ounce also called bullion
the troy-ounce weights of silver may come in coin form called 'rounds'
Many world governments produce 'rounds' of various sizes. Sterling silver
is an alloy containing 92.5% silver and a balance of mainly copper.
Sterling silver is common for ornamental use for example jewelry,
flatware and sculpture. Coin silver is commonly
90.0% silver with a balance copper. Monetary coins and
flatware can also come in lower silver content alloys ranging from 88%
down to as little as 10%.
Gallery of Photos
NITRATE ~ CAS
Our process for purifying silver nitrate is considered the
best. Not only is the metal basis generally more than 99.999% but
also care is taken to reduce chloride and organic material in the final
|SILVER REDUCTION REACTIONS
|Silver metal can be extracted from the nitrate
fairly easy. Silver nitrate itself is not photo or
light-sensitive. Silver nitrate when allowed to sit in open air will
be reduced not by the air, but by trace components of air such as
sulfur-dioxide, and halogens. Silver nitrate will be reduced
by many organic substances, and yes - the skin! That means dark
spots; stains will appear on the skin, clothing, wood, and just
about anything in open air and light. Silver metal will be
formed by a mixture of sugar and silver nitrate, this is a highly
exothermic reaction. Another is using any organic reducing
agents in water. Warning, certain reactions take place with
explosive-like results, and any reduction reaction involving silver
nitrate should be done in water. The easiest way to make silver is
to use pure copper, and place in a silver nitrate solution, this is
a substitution type reaction, where copper nitrate solution will be
formed. Another reaction is the caustic syrup, where the
silver nitrate in solution is mixed with a solution of dissolved
sugar and sodium hydroxide. This reaction avoids the other trans-metals, and
forms cement-silver, a silver powder that is mossy in appearance and
similar to cement mix.
~ CAS 20667-12-3 -
|Silver Oxide or Silver (I) Oxide is made from
silver nitrate solution, it is a fine talc-like dark black-brown
powder. ( Silver (I) Oxide or Ag2O is
what offered on this site) Our high grade silver oxide takes
one week to transform from the nitrate. Silver Oxide sold by
other suppliers is very expensive...generally 3 to 5 times our
price. We have a proprietary silver oxide drying technique
which allows us to create a from-start-to-finish product in less
than one week. In drying we use a high velocity centrifuge which also
pressure washes the oxide. We also use exact titration which
ensures you get high quality with the most neutral pH and the
elimination of production byproducts. Silver Oxide is at least
99.9% metal basis, is 93.1% silver by mass. Silver oxide is a less corrosive
alternative to silver nitrate in glass making and glazing, but it
readily attacks metal surfaces including aluminum and stainless
|We produce metallic silver powders in both low and
high density. Low density has an average tap density of 2.5.
Our high density can range from 4 to 5.5 g/cc. The standard HD (high
density) silver powder is suitable for lower shrinkage fire
sintering. In the high density, we also produce a Micro-Flake
>2micron and Nano-Flake <500nano silver powders. The Micro and
Nano Flake powders are suitable for special projects such as
property tests and making conductive pastes and inks.
Both the Low Density and Nano Flake silver powders are ordered by
request in 50 gram lots.
silver999 v3.5 METAL CLAY POWDER
|This product contains a HDB (high density blend)
silver powder. The binder is made up of special sugars and
starch which when mixed water become long chain starch molecules able to hold silver
particles in place while also providing some flex even when dry. The
metal clay powder is at minimum 95% Silver with a grade of at least
99.9% silver metal fineness. This version of the product is supplied
homogenously. Water must be applied to activate its properties for use. Water
in addition to soap and or glue can be added to alter the
workability property of the clay. See
for more information.
Non-selective GOLD Powder
|Since we are active buyers of precious metals we do
encounter gold quite often. For gold alloys if the gold purity is
over 25% we dilute the alloy with silver then treat the mix with
acid to attain back the silver. A gold powder sponge is then left behind;
which is further purified further without dissolution. By request,
we can provide gold metal powder.
|Pure silver crystals or crystalline silver nuggets
are formed under a controlled environment. A pure silver
containing electrolyte and pure silver ingot are used to grow the
crystals of silver on the aluminum cathodes. After an elapsed
time the the ingot diminishes in mass and the crystals grow with
integrity. The only the largest crystals are collected which
are generally 2 to 10 percent of all crystal growth. The
electrolyte generally turns to a light hint of blue because the
silver ingots used are only 999+ fine. The silver
crystals and the dendrites at this point is better than .99999 fine
is leaving little impact. As recyclers of many metals we
strive to recover everything with leaving nearly any waste.
Currently from our laboratory operations the only waste product
emitted is rust water. We are aware of the impact of heavy
metals like silver and copper have on the environment and we make
sure neither are released. Nitrogen dioxide aka NOx compounds
are scrubbed with dry soda and even that spent soda compounds is in
return used as part of our refining procedure. The laboratory its
self is operational on just 1kW/h per shift!
|Silver nitrate is a chemical reagent and is
considered mildly a heavy metal.
Silver nitrate is a poisonous
substance. Avoid dusts, and heating.
Silver nitrate will stain about anything it comes in
contact with; stains will darken under light.
99% of laboratory uses
for silver nitrate is for a silver nitrate solution, silver nitrate
Silver nitrate should never be mixed with or allowed
contact to: ammonia,
ethyl-alcohol, organic-acids, organic-gases.
When handling silver
nitrate, always wear resistant gloves, protective clothing, and face
Silver Nitrate is an environmental pollutant in that
it ceases microbial growth in septic and waste water treatment facilities.
Waste silver nitrate should not be discarded down a
drain, recycle if possible, or mix with table salt and water before
emptying into a drain.
Store in a dark, damp-free, cool area.
Read MSDS for more information~any user should have a knowledgeable
understanding and experience handling silver nitrate or any
Silver Oxide is a less-corrosive alternative to
silver nitrate in most applications requiring solid product, however
it should be treated like silver nitrate.
Silver oxide will
stain much like the nitrate. Avoid inhaling dusts.
silver oxide to come in contact with ammonia.
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