If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
Bluefire Police film?
David Nebenzahl wrote,on my timestamp of 31/10/2009 5:49 AM:
On 10/30/2009 8:17 AM Thor Lancelot Simon spake thus: I wonder whether, at this late date, it would be possible to persuade Kodak to divulge the formula for Technidol. Sorry, wrong newsgroup; that should be Richard *K*. (M is a guru from another NG.) Anyone in APUG would possibly know? I'm still finding Technidol in a number of local shops. Stashing it away in large quantities at the mo: used with Adox CMS20, I get stunning results. Adox makes their own developer for their film but Technidol works brilliantly as well. |
#12
|
|||
|
|||
Bluefire Police film?
Nicholas O. Lindan wrote:
"Thor Lancelot Simon" wrote I wonder whether, at this late date, it would be possible to persuade Kodak to divulge the formula for Technidol. That would be lovely. Whatever it is, it isn't POTA, more like H&W Control. The ingredients: 1) Diethylene Glycol: diluent 2) Hydroquinone: developing agent 3) Diethanolamine sulfur dioxide complex: alkali/activator? Carbonate substitute? Kodak loves the stuff. 4) Tris (1-methylethyl) naphthalene sulfonic acid sodium salt: wetting agent/developing agent(?) 5) 1-Phenyl-4, 4-dimethyl-3-pyrazolidinone: AKA Dimezone, phenidone-like developing agent I am taking a guess at the reasons for the DEA-SO2 and naptha-sulfonic salt. Anyone with any more clues? For the sake of record I measured the pH of Technidol before I poured it into the tank - it was 8.8. This surprised me as plain DEA has a pH higher than TEA. The SO2 may pull it down. The colour of the spent developer even after 7 mins was brown and I expected it to be pinkish if penidone (Dimezone) was the main agent. Didn't know about the HQ altho it could be a substitute for catechol which IIRC was thought to be in Technidol originally. I have no data on that. How active is HQ at pH 8.8? Getting to be like alchemy. Murray |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
police | [email protected] | Digital Photography | 1 | February 13th 08 11:09 PM |
police | [email protected] | 35mm Photo Equipment | 0 | February 13th 08 03:12 PM |
Adox Bluefire? | Michael A. Covington | Film & Labs | 2 | September 23rd 04 03:40 PM |
Adox Bluefire | David Foy | Film & Labs | 6 | October 19th 03 12:29 AM |