RE: Idle Curiosity [was RE: NA2 with AFO
- To: alt-photo-process-l@usask.ca
- Subject: RE: Idle Curiosity [was RE: NA2 with AFO
- From: EJN Photo <ejnphoto@sbcglobal.net>
- Date: Wed, 15 Nov 2006 10:19:13 -0600
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Judy, It is like many other things in the PT/PD printing of the last few
years, a term coined by those buying and using B&S chemistry. It is short
hand.
Eric Neilsen Photography
4101 Commerce Street, Suite 9
Dallas, TX 75226
214-827-8301
http://ericneilsenphotography.com
Skype : ejprinter
> -----Original Message-----
> From: Judy Seigel [mailto:jseigel@panix.com]
> Sent: Wednesday, November 15, 2006 12:34 AM
> To: alt-photo-process-l@usask.ca
> Subject: Re: Idle Curiosity [was RE: NA2 with AFO
>
>
>
> On Sun, 12 Nov 2006, Jeremy Moore wrote:
>
> > "Na2" is Sodium Chloroplatinate and "dichromate" is ammonium
> or
> > potassium dichromate--2 completely different chemicals.
> >
>
> What piqued my curiosity, Jeremy, was that to the layperson
> (and even a
> chem grad I consulted) Na2 means 2 molecules sodium, or like
> that. Is
> that some kind of shorthand used by platinum printers?
>
> J.