Tetenal Indicet is B&W stop. You just want to drop the pH into acidic range to halt development, some tap water around here is even pH 9 with plenty of crap in it.
Just used some now on a higher pH split-bath experiment (pH ~11.6, ~40.5g/L sodium carbonate), more alkali than C-41. I didn't even measure it, just poured a bit into a beaker of 500ml of tap water, dumped it in, agitated, let it sit for 20s, then felt it with fingers as pouring out, feels hard/"dry" (acidic) as opposed to lubricated/oily/soapy (basic/caustic).
I don't use tetenal anymore (nothing wrong with the results it gave me), just replenished is so much more economic and easier (imo), I got my kit in 2008 or 2009, maybe they modified the manual.
I tetenal indicet is listed as 10-25% citric acid in the MSDS. Dry citric acid in the supermarket in the baking section is like $3 or so. Many options there.
Last edited by Athiril; 06-27-2011 at 06:38 AM. Click to view previous post history.