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Which Board? => Main Forum => : jharr April 27, 2016, 11:10:44 PM

: First batch of Parodinal
: jharr April 27, 2016, 11:10:44 PM

Mixed up a batch of parodinal last weekend and had some time today to dunk some expired FP4 Plus that I had shot in a donated Oly Pen EE.
1:25 x 6.5 minutes

(https://farm2.staticflickr.com/1583/26079302383_bcb61f84f8_c.jpg) (https://flic.kr/p/FJxf1x)
PenEE-FP4+-002 (https://flic.kr/p/FJxf1x) by James Harr (https://www.flickr.com/photos/harrlequin/), on Flickr

: Re: First batch of Parodinal
: Bryan April 28, 2016, 12:37:15 AM

What was the recipe and how do you think it compares to Rodinal?  Can it "develop anything"?

: Re: First batch of Parodinal
: Indofunk April 28, 2016, 12:40:07 AM

: Bryan  April 28, 2016, 12:37:15 AM

Can it "develop anything"?

 ;D ;D ;D ;D

: Re: First batch of Parodinal
: Bryan April 28, 2016, 12:47:08 AM

: Indofunk  April 28, 2016, 12:40:07 AM

: Bryan  April 28, 2016, 12:37:15 AM

Can it "develop anything"?

 ;D ;D ;D ;D

Yes, I was quoting you.

: Re: First batch of Parodinal
: jharr April 28, 2016, 01:30:47 AM

: Bryan  April 28, 2016, 12:37:15 AM

What was the recipe and how do you think it compares to Rodinal?  Can it "develop anything"?

Recipe was the standard one:
-30x 500mg Paracetamol tablets
-50gr of Sodium Sulphite (Anhydrous)
-20gr of Sodium Hydroxide (Anhydrous)
-Water (distilled) to make 250ml

This is the 'cloudy' version that people seem not to like. I'm not sure why, but I think it is aesthetic and not in any way functional. The developer worked as expected. I suspect that it will "develop anything" (c) Indofunk 2016. It cost about $1.50 in materials, so maybe 1/3 the cost of buying Adonal from Freestyle. I think for the next batch I will try doing an alcohol extraction of the paracetamol first. Why?? Why not? I am going to develop the triple print film you sent in this and see how it goes. I might add some KBr to reduce fog and extend the time a bit.

I like kitchen chemistry.

: Re: First batch of Parodinal
: Adam Doe April 28, 2016, 02:21:47 AM

You didn't want to call it Tylenolenol?

: Re: First batch of Parodinal
: Domingo A. Siliceo April 28, 2016, 09:30:18 AM

I prepared my version of "kitchen rodinal" once, but my recipe, even it contains the same ingredients than yours, had different proportions, i.e.,

• Paracetamol - 4 gr
• Sodium Sulphite (Anhydrous) - 10 gr
• Sodium Hydroxide (50%) - 4 gr

I also let the mix rest for 72 hours before its first use. To mix the developer, I diluted 1+39 and used 1+25 official times.

: Re: First batch of Parodinal
: Late Developer April 28, 2016, 01:39:58 PM

Well, with all that paracetamol, it's very unlikely to develop a headache.... ;D

: Re: First batch of Parodinal
: jharr April 28, 2016, 03:57:56 PM

: Late Developer  April 28, 2016, 01:39:58 PM

Well, with all that paracetamol, it's very unlikely to develop a headache.... ;D

 ::)