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Snorting silver salts
The Adox website quotes a shelf life of 50 years for APH 09.
That stuff is positively going to outlast me then. I'd better stock up some of that APH09!
The Adox website quotes a shelf life of 50 years for APH 09.
Just to be sure we have reliable data: Roger, if you still have the bottle, would you try to test suggested. Try developing a short piece of leader.Just souped 5 films (APX 100) in it - 1:40 as recommended and they came out totally blank! Not even the rebate with the numbers is visible. ...
Thanks for the info. (My current bottle of Rodinal is only 17 years old).
The last change in Agfa Rodinal/R09 one shot was around 1992. In 2004 Agfa photo division went to Agfa Photo together with the chemical plant in Vaihingen-Enz. In 2005/2006 Agfa Photo went belly up and one year later the plant was sold to A&O. Two years later it was sold again to CCP&S the actual owner of the plant. Apart from photo chemicals they are producing pharmaceutical materials.
The packing is done by Compard in Hamburg (Germany).
It's done under a Nitrogen stream. In this way original Rodinal/R09 one shot is pretty clear.
Calbe R09/APH09 is packed without Nitrogen. It's already dark like Coke. Again: THIS version has a limited lifespan.
If you're using up he whole concentrate within two years or so, it doesn't matter what version you're using because the differences in development are rather small.
If you want to pay the smallest price: R09 Calbe / APH09 is your choice.
If you want to go for safety and an unlimited lifetime: Rodinal/R09 one shot or Adonal is the way to go. On the bottle of R09 one shot is written in small letters, made by CCP&S and it's the original Rodinal formulae.
No....
Obviously it's no longer available, so I bought some ADOX Adonal, which everyone assured me was the exact same formula. I've had it for a month and noticed that the liquid in the bottle has already gone Coca-Cola brown on me (much quicker than Rodinal used to). Is this the stuff that you folks are talking about going belly up in less than a year??
Calbe R09/APH09 is packed without Nitrogen. It's already dark like Coke. Again: THIS version has a limited lifespan.
I wonder if I have 'new' R09 (i.e. Rodinal) or 'old' R09 (i.e. APH09) - I bought it because I was looking for the older version.
Must admit, I would love a bottle of "proper" old Orwo R09 to play with... 🙂