Bromophen turning pink?

[hoffy]

OK, Hopefully this will be a quicky. I mixed up a batch of Bromophen two and a half weeks ago. While the majority went into brimmed full PET bottles, about a litre went into a half full PET bottle, which I used a portion of two weeks ago. I have now noticed the remainder in the half full bottle has a very distinct pink hue to it. I know that Ilford claim that it will be OK for two months and I do plan to use the remainder tonight, I just want to know if this is the early signs of it starting to oxidise?

Cheers

 

[paul_c5x4]

Had a batch of D76 (as I recall) that was pink on mixing - Used it as normal without any discernible ill effects.

 

[hoffy]

Yes, I have to admit that I am not overly concerned, more to the point I am curious in what's happening, that's all!

 

[Ian Grant]

You will get a slight colour change as a developer oxidises slowly but most PQ developers will work fine even when they've turned a dark straw colour.

Ian

 

[Gerald C Koch]

Mason, "Photographic Processing Chemistry" contains a long discussion of the oxidation of Phenidone. He states that mild oxidation in an alkaline solution yields a pink colored compound.