Ilford multigrade paper develper

joho

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ilford multigrade paper develper
how to make , recipe ???
 

Augustus Caesar

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joho said:
ilford multigrade paper develper
how to make , recipe ???
Click to expand...

Use any standard paper developer formula, such as:

Defender 53-D

Water 500 ml
Metol 3.0 grams
Sodium Sulfite 45.0 grams
Hydroquinone 12.0 grams
Sodium Carbonate (mono) 79.0 grams
Potassium Bromide 1.9 grams
Water to 1000ml

Developer used at a 1:2 dilution. Development time 45-60 seconds.
 

Doremus Scudder

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Kodak D-72 is basically Dektol.

Water (125 deg. F) -------- 500 ml.
Metol ---------------------- 3 gm.
Sodium sulfite, anhydr.---- 45 gm.
Hydroquinone ---------- --- 12 gm.
Sodium carbonate, mono-. 80 gm.
Potassium bromide, anhyd. - 2 gm.
Cold water to make ---------1 liter

Dilute 1+2 for use

Ilford ID-62 is very close to Bromophen.

Water (at 125°F) ------------ 750ml
Sodium Sulfite--------------- 50 grams
Hydroquinone --------------- 12 grams
Sodium Carbonate (anhydr) - 60 grams (70 grams monohydr)
Phenidone -------------------- 0.5gr
Pot Bromide ------------------ 2.0 grams (5cc 10% solution)
Benzotriazole ----------------- 0.2 grams (20ml 1% solution)
Water to make ---------------- 1 liter

Dilute 1 part stock to 3 parts water for use.

I mix both of these regularly using spoon recipes. Measuring spoons are close enough for both and faster. Here are my spoon recipes. (Note: these are for 2 liters of working solution):

Kodak D-72 is basically Dektol.

Water (125 deg. F) -------- 1 liter
Metol --------------------- 2/3 tsp
Sodium sulfite, anhydr.---- 4 tsp
Hydroquinone ---------- --- 1 scant Tbsp
Sodium carbonate, mono-. 3 Tbsp
Potassium bromide, anhyd. - 1/4 tsp + a pinch
Cold water to make ---------2 liters

Dilute 1+2 for use

Ilford ID-62 is very close to Bromophen.

Water (at 125°F) ------------- 1 liter
Sodium Sulfite--------------- 1 Tbsp + 1/4 tsp
Hydroquinone --------------- 2 1/8 tsp
Sodium Carbonate mono) -- 2 Tbsp
Phenidone -------------------- 1/8 tsp
Pot Bromide ------------------ rounded 1/8 tsp
Benzotriazole ----------------- 20ml 1% solution
Water to make ---------------- 2 liters

Dilute 1 part stock to 3 parts water for use. Double the amounts in this formula but make 1 liter total if you want a stock solution that you can then dilute 1+3.

Have fun,

Doremus
 

Lachlan Young

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Ian Grant said:
It's not been published.

Ian
Click to expand...

It is (or something extremely similar is) disclosed in an Ilford patent or two from the 1990s - from recall, there are buffer and restrainer differences vis-a-vis PQ Universal. I cannot immediately remember if there are PQ ratio differences between them.
 

albada

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Both @koraks and I like ID-62. If the OP wants to home-mix a developer, this is a good choice.
 

pentaxuser

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I am confused here Your recipe makes 3 litres which I presume is not diluted but ready to use.Then you say double the amounts in the formula if you want a stock solution that you can dilute 1+3

The formula seems to make 3 litres but is ready for use as 3 litres but if you double the ingredient you get 3 litres that is stock which requires diluting 1+3?

So the first is ready to use "as is" but the second by doubling the solid ingredients give you a stock solution which gives you 3 litres of stock and 9 litres of "ready to use" developer

Have I got this right ?


Thanks

pentaxuser
 

MattKing

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pentaxuser said:
I am confused here Your recipe makes 3 litres
Click to expand...

It makes two litres of working solution: "Water to make 2 litres".
And if you were to double the (non-water) ingredients, than there would be enough there to make 4 litres of working solution.
So if you want to make the stock solution instead, halve the water (to make 1 litre of stock) and double the other ingredients, and the resulting stock can be used instead to make up 4 litres of working strength.
 

Ian Grant

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I agree, I have a copy of that Patent, but it is not the definitive formula. However the standard developer it is compared to i clearly PQ Universal, and if put in a spreadsheet you can see it's concentrated ID-62 with the Sodium Carbonate substituted wit Potassium Carbonate and Hydroxide.


Bromophen is almost certainly ID-20 PQ which Ilford sold in powder form in the mid to late 1950s. There were complaints from customers about changes in image warmth with use, so it was reformulated as ID-62 with half the Bromide, and adding Benzotriazole to stop the colour shift, and then concentrated and sold as a liquid developer PQ Universal (as above).

Ian
 

Ian Grant

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koraks said:
Absolutely. I can only say nice things about ID62!
Click to expand...

I will disagree But only because the bad thing about ID-62 (or ID-78 the warm tone version) is a Litre on;y lasts 4 printing sessions at 1+3. I typically mix a litre of working strength developer per printing session, topping up if needed.

So instead I mix to commercial strength and use at 1+9, it also has a better shelf life.

Ian
 

koraks

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Ian Grant said:
But only because the bad thing about ID-62 (or ID-78 the warm tone version) is a Litre on;y lasts 4 printing sessions at 1+3.
Click to expand...
That's still pretty good, though! I mix the working strength developer stronger, store in fully capped glass bottle in-between sessions and replenish after each session. That way, it keeps going indefinitely!
 

Ian Grant

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koraks said:
That's still pretty good, though! I mix the working strength developer stronger, store in fully capped glass bottle in-between sessions and replenish after each session. That way, it keeps going indefinitely!
Click to expand...

Concentrated Stock Solution ID-62

Phenidone 1.25 g
Sodium Sulphite (anh) 125 g
Hydroquinone 30 g
Potassium Carbonate (anh) 95 g
Sodium Hydroxide 5.3 g
Potassium Bromide 5 g
Benzotriazole 1% soln 50 ml
Water to 1 litre
To use: Photographic Papers - Dilute 1+9 (1+4 for higher contrast)
 

koraks

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Yes, that's the concentrate I'm using. But I mix it at ca 1+2 for the working strength developer. Evidently it's quite fast that way, too.
 

john_s

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I mix ID-78 at 3x standard strength, using equimolar potassium carbonate instead of sodium carbonate. It does go into solution (just). However I have discovered that my "anhydrous" potassium carbonate has actually absorbed a significant amount of humidity so I would have to use x1.26 times it to be correct, and it possibly wouldn't go into solution. So the hydroxide trick looks like the answer. Is there any downside to doing that? Is Ian's suggested formula the practical limit to the substitution?
 

RalphLambrecht

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I second the suggestion to use D72, a published and proven paper developer!
 
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