Shelf life of mixed PMK

[rayfc]

Hi...

 

 

I have some mixed PMK developer that's been in sealed glass bottles

for two years. They've been stored at normal room temperature the

whole time. Also, there is a good bit of air space in each bottle

but, nothing appears to have evaporated or leaked-out.

 

It seems to me, I recall hearing that PMK solution will store for a

very long time. Can anyone confirm?

 

Thanks...

[jay_de_fehr]

Gordon Hutchings claims 10 years+, but I can't confirm that.

 

Jay

[tim_curry]

I mix it about once a year. The current batch has been going for well over a year now. The bottles are opened frequently, have lots of air space and are nearing empty, about 1/4 full. No change in strength at all. It should be good for years without any trouble.