Yeah, I was thinking that as well. In fact I don't even buy silver from New Mexico or Arizona because of their proximity to Mexico for the same reason.
So some 925 silver is just plain fake? Great. Thanks for the heads up. Dick ________________________________ From: Steve <[email protected]> To: [email protected] Sent: Fri, December 4, 2009 11:49:33 AM Subject: Re: CS>nano-silver powder Some countries export products that do not match their claims and are made with dangerous shortcuts. OR they just plain lie. So, I avoid anything marketed from India, Italy, Thailand, and Mexico. These countries are noted for deceptive marketing strategies or plain just mismarking stuff. Thailand sells a lot of silver jewelry with 925 stamped on it but turns out always to be silver plated over a base metal. So, I'll pass on this dubious stuff. --- On Fri, 12/4/09, Ode Coyote <[email protected]> wrote: >From: Ode Coyote <[email protected]> >Subject: CS>nano-silver powder >To: [email protected] >Date: Friday, December 4, 2009, 8:02 AM > > > > > 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 > > >-- >The Silver List is a moderated forum for discussing Colloidal Silver. > >Instructions for unsubscribing are posted at: http://silverlist.org > >To post, address your message to: [email protected] > >Address Off-Topic messages to: [email protected] > >The Silver List and Off Topic List archives are currently down... > >List maintainer: Mike Devour <[email protected]> > >
