Re: More questions - KAuCl2 vs AuCl3

Loris,
Thanks for the tip. However, neither B&S nor JDPhotochem
  carry the KAuCl2 salt. So we would either have to import it from
gold sellers in Grand Bazaar or pay up for the AuCl3 and bypass
the hassle of having to enrich Canada customs. Rajul

On 19-May-06, at 1:32 PM, Loris Medici wrote:

> A note about gold chloride (AuCl3): one can also use KAuCl2 (which is
> used in gold plating industry, AFAIK) perfectly for gold toners. For
> me (a person located in Istanbul) KAuCl2 is cheaper and easier to find
> (just a short visit to the gold sellers in Grand Bazaar). I use the
> thiourea-gold formula replacing AuCl3 with KAuCl2. The gold percentage
> difference is extremely small (AuCl3 -> 64.94% vs KAuCl2 -> 64.16%),
> therefore you can substitute AuCl3 with KAuCl2 using the exact amounts
> stated in the formula.
>
> Just my 2 cents,
> Loris.
>
> -----Original Message-----
> From: Venkatram Iyer [mailto:eyeear@telus.net]
> Sent: 18 Mayıs 2006 Perşembe 21:53
> To: alt-photo-process-l@usask.ca
> Subject: Re: More questions
>
> Hi David and Jordan,
>
> I purchase most of my chemicals from JDPhotochem, though not the
> ferric salts because I am not assured that they are free from ferrous
> contamination. I live in Kelowna, B.C., and am looking into 
> purchasing gold chloride and palladium salts to use as toners and/or
> for alt procedures.
>
> If it is feasible, I would be happy to contribute towards getting a
> break on prices for all of us by placing and order along with you. Do
> let me know if this is possible.
>
> Rajul
Received on 05/19/06-03:25:19 PM Z