OK, first post here. Hi, all.

My intent is to mix my own C-41, in particular the developer. While I am not a chemist, I am capable of following instructions and reading up on backgrounds, including MSDS sheets.

Disclaimer - I have no intent of proclaiming self mixing as the only way to go, saying its better or worse than pre mixed stuff or do a cost analysis. I only wish to mix my own out of curiosity and to gain a control by knowing what is in my developer.

The last few weeks I have spent a lot of time surfing for recipes, formulas, etc. through apug.org, www.largeformatphotography.info, photo.net and lots of other sites. Even some patent sites the last few days e.g. European patent office: http://v3.espacenet.com/textdes?DB=E...&QPN=US5827635

I came up with only two leaving aside the ones in various patents, like the one in the link above. These are also mentioned in a recent post here by srs5694: http://www.apug.org/forums/forum40/18144-new-c41.html Well done!

What I did find is a lot of people saying 'yep, can be done' mostly referring to the info given here: http://www.bonavolta.ch/hobby/en/pho..._chemicals.htm.

I have now contacted several dealers first in the UK (where I live) then USA and the result is: I cannot get the core chemicals.

e.g. http://www.process-supplies.co.uk/ and http://www.silverprint.co.uk/
don't do Hydroxylamine Sulfate and Ferric Ammonium EDTA. Never mind Formaldehyde or Sulphuric Acid. General argumentation: EU laws, health and safety regulations. A third UK supplier Rayco Chemicals, I just talked to on the phone. The very kind new owner has bought the company in Feb 2005. There is no website yet. The gist: He is unlikely to purchase new stock of colour chemistry (e.g. CD3, CD4) - there is no market. If there is old stock, that will be sold of course. All dealers mentioned regulations regarding storage and handling as, by now, major hurdles.

Attempting to contact three US suppliers, I only got a response from The Formulary http://www.photoformulary.com/ They cannot send CD-4 and Hydroxylamine Sulfate to the UK - hazardous chemistry.

Is there anybody out there that still mixes chemistry and has actually purchased some in the, say, recent months? In particular in the UK/Europe

Has self mixing C-41 (probably E6 as well) been killed of by regulations on the one hand and quickly dropping demand on the other?

I'd be happy to hear your thoughts - expecially those of any home brewers.

Ta, Martin