[pure-silver] Re: stopbath kills fixer
- From: "John Black" <jblack@xxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 25 Jan 2005 15:18:14 -0500
> Citric Acid Fixer
>
> Water (50=B0C) ........................... 600 ml
> Sodium thiosulfate (pent) .............. 240 g=20
> Sodium sulfite (anhy) .................. 15.0 g=20
> Citric acid ............................ 5.0 g=20
> Potassium alum ......................... 15.0 g=20
> Water to make .......................... 1.0 l=20
>
> Preparation
>
> Dissolve the thiosulfate in the indicated amount of water. In 80 ml of =
> water,
> dissolve the remaining ingredients and add to the thiosulfate solution =
> with
> rapid stirring. Make up to the solution to 1 liter.
>
> Use full strength. Fix for 5 to 10 minutes.
>
> You can leave out the alum if you don't desire hardening.
>
> Jerry
Thank you. Do you have any idea of the target pH?
JB
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