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Since the only available way to get Phenidone near me (without import issues) is buying 1 litter bottles it seems to be way too much developer so I need to know a few things:

 

Will it last a some years before expiring?

How should I store it once and everytime I get a portion out of it in order not to get it damaged by oxygen or other agents? Should I place marbles inside the bottle to top it not allowing air inside?

All comments are wellcome!!

 

tcdp

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What sort of "phenidone" are you buying?

 

The pure chemical is a white crystalline solid with a melting point of 121ºC-so not something that you'll likely encounter as a liquid unless you intentionally make it that way.

 

If it's a solid, keep it cool and minimize its exposure to air-it should keep a while.

 

I wouldn't want to buy it as a solution, but if you do again minimize its exposure to air. I'd be concerned about its shelf life.

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Most likely it's Phenidone-3. It'll last decades without any particular care. It turns slightly pink with oxidation, but if used in a superadditive combination with hydroquinone or sodium ascorbate, that slight oxidation makes no difference to the developing action.

 

A Kg of phenidone will most likely outlive its owner!

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P.S.

POTA contains 1.5 gm/litre of phenidone, and while I doubt that POTA itself is of much use as a general purpose developer, it could be turned into 3 litres of a phenidone-ascorbate substitute for D-76.

 

I have a suitable formula somewhere, if you're interested.

 

Thank you, but it's a bit difficult obtaining Phenidone in my country. Thanks anyway

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Thank you, but it's a bit difficult obtaining Phenidone in my country. Thanks anyway

 

- If you can get POTA, then you can get Phenidone. Just in solution.

 

As I said, one litre of POTA contains 1.5gm of Phenidone, which is sufficient for 3 litres of a PQ or Phenidone-Ascorbate substitute for D-76.

 

The only other chemical in POTA, is sodium sulphite, which is used in almost every other developer formula ever invented.

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