Sepa Toner Keeping Properties...?

[pawlowski6132]

So...if I mix a batch of Sepa Toner (using Sodium Sulfide) is my working solution one and done? Does is have a certain capacity per session? I can't find anyting in the literature to suggest a useful life for my working solution.

Thank you in advance for your thoughts,

Joe

 

[Jim Noel]

The working solution should be used in one day. If bleaching and/or toning times get too long, for me it is if time more than doubles, then it is time to mix fresh.

 

[pawlowski6132]

Thanx Jim. About how many sheets (and size) do you get out of normal batch in one session? Just curious.

 

[Rudeofus]

Do you have separate bleach & toning bathes? If yes, you can revive the bleach by adding a spoonful potassium ferricyanide to the bleach. I did this yesterday and got two month old soup working again. If the toning bath doesn't tone anymore, it's exhausted, and you should toss it out.