Bet it's cheaper by the pound or kilo direct from the manufacturer in
China and India.
Even at $90 a gram making 28.6 Fl Oz, that's about $ 200 per 800 ml
bottle @ the average selling price of $7 an oz @ 10 PPM for "ordinary" CS
at the store.
..a touch better than double your money by mixing up water and putting it
in a bottle with a label @ 20 PPM.
Go to 10PPM, the more common strength, and that's ~$400 a bottle.
[Which is, of course, why we make our own for $1 a gallon, even "IF" it
MIGHT be slightly inferior.]
Sold as "extraordinary" CS ? Who knows what the price is?
Seems to be a variance in appearance and purity too......depending on supplier.
http://nanosilver.autofibrecraft.com/
Properties:
Physical Appearance: Dry, Uncoated, Pure Powder Silver (Ag) in elemental form
Size - APS 40 nm
Morphology - Spherical soft agglomerates (easy to deagglomerate)
BET Surface area - 8-10 sqm/g (no porosity)
Tap Density - 1.5-1.8 g/cc
Color : Off-white to Grey
Purity: 99.999% Ag, RoHS Compliant
Manufacturing Capacity:
We are proud to say that we are the largest producer of Nano Silver Powder
in INDIA. Our installed capacity is > 1 Metric Tonne/ month which will be
enhanced soon to 100 Kg per day in the coming months.
Pricing:
Economy of scale makes it possible to offer Nano Silver at much cheaper
price than offered by competition. We call upon all the scientists and
potential users to try out our Nano Silver powder for developing their
applications.
#################################################
http://www.nanomaterialstore.com/nano-silver.php
Silver Powder (Av. Size 35 nm) 99.8%% 35 nm 2-100 nm n/a 30 - 50 m2/g
Spherical 0.30 - 0.60 g/cm3 10.5 g/cm3 Black and Grey
ode
At 07:08 AM 12/3/2009 -0800, you wrote:
>A new one from the lab supply houses is Nano Silver Powder derived by
chemical processes or electro-sputtering...pretty rare in the
"supplements" field so far and not much known about it...could be made
very strong...might be pretty good...but be careful and watch that
total. Its intended purpose is for glazes, anti bacterial coatings and
paint additives etc.
I found one of these
places:
<http://www.nanomaterialstore.com/nano-silver.php>http://www.nanomaterialstore.com/nano-silver.php
Wrote and asked them how much water it would take to create a colloid of
silver using 1 gram of their silver.
The answer: From: "[email protected]"
1.6wt% is 1.6 per hundred. Say, diluting 1mL 1.6wt% solution to 20ppm
(20E-6) means you need 1.6%*1mL/(20E-6)=800mL water.
BTW, we don't have 1.6wt% powder, it is water solution in which Ag is
1.6wt% compare to water.
Regards, Haorong
So one $90 gram of their silver will make 800 mL of CS. This might be
very high quality CS, albeit with no ionic content, which is not exactly
what we want, but the price is pretty prohibitive, IMO.
Dick
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