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je2a3
08-29-2005, 13:11
I have about 200ml of this concentrated chemical left in its 500ml container stored and tightly capped for the past 3 months. When I opened it today to make a fresh working solution it has turned dark. Is this an indication that it is no longer good?

Thanks for any info!

Regards,

Joseph

geoset
08-29-2005, 13:22
Yes. throw it.

phototone
08-29-2005, 14:05
I have about 200ml of this concentrated chemical left in its 500ml container stored and tightly capped for the past 3 months. When I opened it today to make a fresh working solution it has turned dark. Is this an indication that it is no longer good?

Thanks for any info!

Regards,

Joseph

Ilford MG (MultiGrade) Developer is a developer for Ilford RC paper. It does turn dark with age. It is highly concentrated, and is diluted with quite a lot of water to make a tray solution. If you are going to use it to make prints on RC paper, it probablly will be just fine, unless it is black. When mixed in a solution suitable for tray processing of RC prints, it should be even when dark in concentration, when duiluted a fairly light brown. Kodak's Dektol does this darkening bit also, and unlike film developers, it still functions quite well, unless it actually goes black in concentrated liquid form.

geoset
08-29-2005, 21:20
This is false economy if you're interested in quality prints.