Kallitype sensitiser mixing problem

thefizz · Oct 31, 2019

I mixed 100ml of Ferric Oxalate last night and today a sediment has settled at the bottom. I have been making kallitypes for a few years now but never had this happen before. Has some thing gone wrong? Do you simply shake the bottle before use?

revdoc · Nov 2, 2019

What, no responses?

I can't say what the sediment is, but maybe it's just undissolved oxalate. Were it me, I wouldn't shake it up. I would, however, try making some prints with it. If it works, I'd just use it as is.

thefizz · Nov 2, 2019

It’s strange as it never happened before. I’ll filter out the sediment and try a print tomorrow.

thefizz · Nov 4, 2019

Actually the sediment has disappeared after a few days. It now looks clean and clear. I made a few prints and it seems to be working fine.

revdoc · Nov 4, 2019

Good to hear it's working!

Sounds like it was undissolved oxalate. I've read comments that it can be hard to dissolve, but I haven't had that issue, myself.

Andrew O'Neill · Nov 5, 2019

I had some Ferric Oxalate from Nymoc in Toronto several years ago (out of business) that was a real bitch to get into solution. There was always a thick sediment on the bottom. I warmed up the solution, reshook the bottle, and it eventually would dissolve. For years now I've been using FO from B&S. Goes into solution way more easily.

Kallitype sensitiser mixing problem

thefizz

revdoc

thefizz

thefizz

revdoc

Andrew O'Neill

Moderator

Privacy & Transparency

Privacy & Transparency