[pure-silver] Re: Sodium bisulfite
- From: "Fyodor M. Tcheredeyev" <fyodor@xxxxxxxxxxxx>
- To: John Black <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 15 Mar 2005 19:35:29 +0100
Hello John,
Thank you very much for your advice.
I also like your idea of keeping a solution of Na sulfite. Why 28%,
please?
Fyodor.
Monday, March 14, 2005, 10:35:29 PM, you wrote:
JB> Use 21-22ml of the 37% concentrate per 4L water. That will give you 8 gm.
JB> To be precise, use 21.62 ml of the bisulfite lye. It has 0.37gm bisulfite
JB> per ml.
JB> Saturated solutions are good ways to keep easily oxidized solutions. I use a
JB> saturated solution of Na sulfite (about 28%) to add to various developers,
JB> washes and fixes when I need them so I don't have to weigh out the dry
JB> stuff.
JB> JB
JB>
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--
Best regards,
Fyodor mailto:fyodor@xxxxxxxxxxxx
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