[pure-silver] Re: Amidol and oxidization

not to my knowledge.  from the sounds of it, it's the dev to use for that 
paper, but i've only tried is a few times on other papers and didn't see much 
difference 'tween that and dektol.



________________________________
From: Bogdan Karasek <bkarasek@xxxxxxxxxxxx>
To: pure-silver@xxxxxxxxxxxxx
Sent: Saturday, May 23, 2009 12:57:19 PM
Subject: [pure-silver] Re: Amidol and oxidization

Hi,

I take it then that it doesn't matter what quantity I use at one time,  1.5L or 
3L, 2 hours max. 

Bogdan

Eric Nelson wrote:

> As I recall, 2 hours max.  It basically just stops working.  So when you make 
> your first batch, weigh out enough to make a 2nd batch and keep it unmixed 
> and ready to go.
> 
> ------------------------------------------------------------------------
> From: Bogdan Karasek <bkarasek@xxxxxxxxxxxx>
> To: pure-silver@xxxxxxxxxxxxx
> Sent: Saturday, May 23, 2009 12:01:08 PM
> Subject: [pure-silver] Amidol and oxidization
> 
> Hi all,
> 
> Again,,  a Thank You to all who responded to my query concerning AZO and 
> fogging.  Very helpful responses but which lead me to other questions 
> concerning AMIDOL which was mentioned as THE developer for AZO.  I've order a 
> quantity of Amidol from my supplier and will be using the formula found on 
> Michael A. Smith's web site..
> 
> I've done some further research into the p[properties of Amidol which I have 
> never used before.  Looking through the "Darkroom CookBook", Anchell 
> mentions, as have others on this group,  that Amidol oxidizes easily and 
> should be mixed just before usage.
> 
> The question I have concerning AMIDOL regards the following  from 
> the"CookBook":  "Oxidizes rapidly and keeps poorly"
> 
> Can anybody quantify "rapidly"
> 
> My usual darkroom work practice when using Dektol is to mix a 4 liter batch 
> of 1:2 Dektol and that sits in a large tray for at least 8-10 hours as I 
> print, after which I dump it when I am finished at the end of the day
> What about Amidol????  How long will that keep in an open tray before it 
> oxidizes and I have to dump it.... 2 hours, 4 hours, 6 hours or what?  Am I 
> better off mixing a small batch, 1.5L  and changing often,  or will a  3L 
> batch last longer????
> 
> From personal experience working with Amidol, can anybody quantify "oxidizes 
> rapidly"
> 
> Cheers,
> Bogdan   -- ________________________________________________________________
> Bogdan Karasek
> Montréal, Québec                    
> bogdan(at)bogdanphoto.com<http://bogdanphoto.com>
> Canada                              
> www.bogdanphoto.com<http://www.bogdanphoto.com>
> 
>                     "I bear witness"
> ________________________________________________________________ 
> 
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-- ________________________________________________________________
Bogdan Karasek
Montréal, Québec                     bogdan(at)bogdanphoto.com
Canada                              www.bogdanphoto.com

                    "I bear witness"
________________________________________________________________  


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