E-6 Diy

**Steve_Renwick** · 25-May-2009, 15:58

Originally Posted by Gord Robinson

Attached is a link to the Kodak tech notes on the 5L kit which should answer your questions about the disposal of the chemicals as well.
http://www.kodak.com/global/en/profe...443/ti2443.pdf

Gord

Thanks!

**Tom Keenan** · 25-May-2009, 18:04

I have been looking for a reference for how long the chemicals in the Kodak E-6 kit are good UNmixed once they have been opened and exposed to air. So, I open the box, mixed a liter or two...how long can I use those remaining chemicals in their original unmixed state?? I notice Thomas above says several months but I'm looking for a reference to substantiate that. I read the Kodak data sheet and it says do not store the chemicals at unusually high or low temps but they give no time...Anyone?
Thanks
Tom Keenan

**domaz** · 26-May-2009, 13:59

There is no official answer about how long the concetrates last once opened. It is "not supported" by Kodak to do that- they expect you to mix all 5L at once. The unofficial answer is the concetrates last quite a while once opened though.

**Gord Robinson** · 26-May-2009, 23:39

If you are going to mix up a liter or two and store the remaining concentrate for a later date your best bet is to either displace the air in the bottles with an inert gas like nitrogen or argon or put the remaining chemistry into smaller bottles. I have used E6 kits that were past the 2 year "best before date" on the box by both these methods with no signs of the chemistry going bad.
Gord

**Thomas Krueger** · 27-May-2009, 05:37

Time ago I used to work with the Tetenal E6 3-Bath-Kit developing 4x5" and 5x7" in drums on the Jobo ATL1, works fine.

http://www.bhphotovideo.com/c/produc...h_Kit_for.html

**Thomas Krueger** · 27-May-2009, 22:26

Jobo has some docs online http://www.jobo.com/jobo_service_ana...pdf/index.html

E-6 Handbuch (GB - 247kb)
http://www.jobo.com/jobo_service_ana...andbuch_GB.pdf

Chemie E-6 3bad 5L (GB/D/E/RUS - 293kb)
http://www.jobo.com/jobo_service_ana...bad_5Liter.pdf

**Tom Keenan** · 30-May-2009, 07:52

Thanks for the info. Is there a quick and easy way to put an inert gas in those bottles? I picture a giant tank being loaded off a truck with all kinds of symbols and numbers and warnings. What do folks do?
Tom Keenan