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Which phenidone?
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PostPosted: Sat Apr 03, 2010 9:48 pm    Post subject: Which phenidone? Reply with quote

I want to use an only bath as developer and all others bath (stop bath, etc)

Which phenidone I have to use ?

A) Phenidone A (1 Phenyl 3 Pyrazolidone)
B) Phenidone B (4 Methyl 1 Phenyl Pyrazolidone)

The formula is :

Phenidone 4 grs.
Hydroquinone 12 grs.
Sodium hiposulphite 110 grs.
Sodium hidroxido 4 grs.
Sodium anhydrous sulfite 50 grs.

Thanks.

Rino.


PostPosted: Sun Apr 04, 2010 9:14 am    Post subject: Reply with quote

Hello, Rino.
Anchell's "Darkroom cookbook" states 1 Phenyl 3 Pyrazolidone.

Cheers, Marty.


PostPosted: Sun Apr 04, 2010 12:54 pm    Post subject: Reply with quote

Thanks Marty, very much.

Rino.