StoneNYC
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Stone, I've just clarified my previous statement.
What you're saying it's correct, Mirko of Fotoimpex hired Agfa scientists to "reformulate" the 2004 Rodinal recipe.
But this 2004 Rodinal recipe hasn't the legendary keeping qualities of Rodinal many photographers refer to in photo fora.
In that I said that "Adonal IS NOT Rodinal, it hasn't the same shelf life of Rodinal.
Infact the 2004 Rodinal calls for a limited shelf life once the bottle is opened.
P.S.: I usually don't insult people for free, unless I'm insulted first.
It seems (pick it with a grain of salt) that Agfa in 2005 reformulated Rodinal recipe decreasing the p-aminophenol quantity and increasing the NaOH. Now if I've understood correctly the keeping quality of Rodinal is proportionally direct to the p-aminophenol content. That should solve the shelf life debate.
I would not leave any developer opened, it's not only an oxidation problem. The aqueous part of the developer can evaporate that way leaving a more concentrated solution thus messing around with diluitions, developing times etc...
LOL. I'm part Italian, and only speak English, but only had to Google "cafone."Epic fail dear italiano cafone trapiantato a NY.
Just trying to find a way to oxidize it quickly...
Why did they change it? What was the benefit?
To make sure people need to buy it more frequently?
In my experience 6 months or less. But there is a benefit from it for me, I bought a pair of brand new Sekonics. Just to make sure it is a developer, what is failing, not my light metering.Every 10 years instead of every 20? Hah!
Oh I see, thanks for clarifying.
I would think that the newer version was simply labeled for a more litigious society and not it's failure with lesser keeping properties, that said, that part is opinion. Either way it lasts a LONG time still, in fact, does anyone know, is it safe to leave a bottle open on purpose? I will pour 100ml of Adonal into a bottle and leave it open in my basement for 2 months with no lid, that's a long time of oxygen exposure...
Assuming the fumes aren't dangerous since it's near the air recirculator? Anyone know?
Epic fail dear italiano cafone trapiantato a NY.
R09 one-shot is packed under intert gas.
http://www.flickr.com/groups/rodinal/discuss/72157622015957803/
"
Fotohuis (Robert) says:
According Sebastian Junghans, marketing manager from Rollei-Maco:
Aphog Kompetenzpartner vom 12.02.2009 zum Thema:
viewtopic.php?f=45&t=8315
Die Original Agfa Rodinal Rezeptur, die für die neuesten Versionen unter der Marke Adox und seit 2006 für
die Marke Rollei R 09 One Shot in Vaihingen produziert werden, unterscheiden sich neben der reineneren
Chemie vor allem durch die Produktion unter Schwergas. Bei uns sogar einschliesslich der Abfüllung in die
Flaschen unter Linde Schwergas. Daher ist das Rodinal, das als Rollei R09 One Shot dem Markt angeboten
wird erheblich länger hell als die früheren Agfa Produktionen.
Nachdem oben bereits zwei Namen genannt wurden, der Vollständigkeit halber:
www.generalphoto.de/shop/article ... 3DGP3RO%26
Production and filling of the bottles under inert gas is the reason that R09 one shot has even a lighter color then Agfa Rodinal in the past. "
Dear italiano cafone trapiantato a NY, I'd suggest you to think twice before offending someone you don't even know personally.
You and that other from Michigan.
Ciao bbelli!!
Now combine that statement with the fact that the plant in Vaihingen / Enz no longer produces this.
In my experience 6 months or less. But there is a benefit from it for me, I bought a pair of brand new Sekonics. Just to make sure it is a developer, what is failing, not my light metering.
Well, look at the MSDS.
http://www.adox.de/ADOX_ADONAL(E).pdf
Even if its only 100ml I would prefer not to enter a room full of the fumes so unless your ventilation system is adequate and turned on nonstop during the experiment Id call it a bad idea. Air recirculator? We are talking a fan pulling the air out from the darkroom, right?
Best regards
6 months? Ridiculous, you sure this was Adpx Adonal? And you haven't done something else wrong like diluted it?
That seems very counter to my experience... Especially with the cracked cap incident....
Well, look at the MSDS.
http://www.adox.de/ADOX_ADONAL(E).pdf
Even if its only 100ml I would prefer not to enter a room full of the fumes so unless your ventilation system is adequate and turned on nonstop during the experiment Id call it a bad idea. Air recirculator? We are talking a fan pulling the air out from the darkroom, right?
Best regards
I have said this several times before but will say it again. An MSDS must be read carefully and with some knowledge of chemistry. The document does NOT tell the reader what is IN the product but rather what is MIXED to PRODUCE the product. There is a very big difference between the two. There will usually some reactions between the ingredients. There are not going to be any fumes from the ordinary use of this product as a developer.
Well that's wrong too, if the developer has an odor, then it produces fumes...
I have said this several times before but will say it again. An MSDS must be read carefully and with some knowledge of chemistry. The document does NOT tell the reader what is IN the product but rather what is MIXED to PRODUCE the product. There is a very big difference between the two. There will usually some reactions between the ingredients.
So what?
Compard is making the packaging so Compard is flushing the bottle with inert gas while Adox doesn't.
Tell me what does inert gas flushing of the bottle at the plant have to do with my bottles keeping property after I crack the seal. I only care about how long it will last after my bottle of Adonal has been opened. 6 mos. seems a little on the short side to me since I still have my old bottle of Rodinal (post 2004) and it's working just fine. I would think the two, post 2004 Rodinal and Adonal, should be the same. JohnW
A safety data sheet is to inform about a substance or mixture.
A mixture is something different than just the sum of the ingredients mixed you refer to.
Tell me what does inert gas flushing of the bottle at the plant have to do with my bottles keeping property after I crack the seal. I only care about how long it will last after my bottle of Adonal has been opened. 6 mos. seems a little on the short side to me since I still have my old bottle of Rodinal (post 2004) and it's working just fine. I would think the two, post 2004 Rodinal and Adonal, should be the same. JohnW
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