[alt-photo] Re: Anyone using sodium citrate as DOP pt/pd developer?

[Jon Reid]

I have been using Sod Citrate as my main developer for a few years now.

I used to use the cold formula of Pot Ox but found it grainy, though I
liked the tone. I use Sod Cit at ~30C and find pleasing near-neutral
tones with smoother 'grain'. Contrast difference is slight in my
experience.

Have not notices speed difference but I'm not that scientific about my printing.

Another advantage is I can get it locally, from a veterinary supplier.
I make a saturated solution from about 200 - 250g/litre.

Jon

On 11/01/2012, at 1:16 AM, Christina Anderson <zphoto at montana.net> wrote:

> OH, a ps is I mixed am citrate up 1/2 lb to 1400ml, sod citrate 1lb 1400 ml. In my notes I have sodium citrate is lower in contrast, colder in tone than potassium citrate but I don't have how potassium citrate compares to ammonium. I will try to search out my sodium citrate test strips somewhere but whatever I did, I didn't feel a need to use it in place of ammonium citrate for any reason.
> Christina Z. Anderson
> christinaZanderson.com
>
> On Jan 10, 2012, at 7:05 AM, Christina Anderson wrote:
>
>> Hi Loris,
>>
>> I printed an 8x10 step wedge, ripped it in thirds, and tested developers hot and room temp, so same print, same paper, same exposure. I can see no grain difference between am cit and pot ox but a MAJOR color difference and a slight speed difference.
>>
>> I had always used the citrates before, but when I finally used pot ox there was no turning back for me. But I love the warm tones.
>>
>> If I wanted neutral I would go back to ammonium citrate but I might use it heated up. I don't know where my test strips of sodium citrate are but I don't remember much difference between ammonium and sodium though don't quote me on that one.
>>
>> I will send you a jpg offlist.
>> Chris
>>
>> Christina Z. Anderson
>> christinaZanderson.com
>>
>> On Jan 10, 2012, at 4:18 AM, Loris Medici wrote:
>>
>>> Hi all,
>>>
>>>
>>>
>>> Is there anyone using sodium citrate as DOP pt/pd developer? If yes, at what
>>> strenght?
>>>
>>>
>>>
>>> How different is sodium citrate compared to say... potassium oxalate? (In
>>> terms of hue, contrast, grain ect...)
>>>
>>>
>>>
>>> TIA,
>>>
>>> Loris.
>>>
>>>
>>>
>>> _______________________________________________
>>> Alt-photo-process-list | http://altphotolist.org/listinfo
>>
>> _______________________________________________
>> Alt-photo-process-list | http://altphotolist.org/listinfo
>
> _______________________________________________
> Alt-photo-process-list | http://altphotolist.org/listinfo