Formula for Kodak Xtol please..

Puretranquility · Jan 28, 2007

Hello,

This very useful information Will be paid for in kind by the email delivery of the United Kingdom Indian Restaurant recipe for Chicken Balti and Chicken Curry, I Personally guarantee.

A Special paste from an Indian company in the Uk is used, that you are Unlikely to replicate yourself, I doubt you would be able to buy the rare type and amount of Saffron required..

- Showing an Indian waiter a self-defence move works wonders..

Puretranquility
---------------------------------------------------------
" Solidity is an illusion, however, spiritual energy can learn "

Photo Engineer · Jan 28, 2007

If I had it, it would be worth a LOT more than that. LoL.

PE

Puretranquility · Jan 28, 2007

( No it wouldn't, because a happy man relies on noone.. )

Puretranquility
------------------------------------------------------
" Solidity is an illusion, however, spiritual energy can learn "

PHOTOTONE · Jan 28, 2007

There are a number of published formulas for "work alike" Vitamin C developers readily available, such as Mytol. Look in the article section of this forum.

Commercial developers have things added to them to aid in their shelf-life in the dry packaged state, that we do not need, if we are mixing up our developers from component chemicals. Therefore while the Xtol chemical formula may deviate from the "home brew" formulas, the result will often be identical development characteristics.

jim appleyard · Jan 28, 2007

Look for "Mytol" and "E-76" in Anchell's "The Darkoom Cookbook". Both of these are homebrew versions of X-Tol and both work quite well.

blackmelas · Jan 29, 2007

or here for another version (there was a url link here which no longer exists)

I'd would be interested in curry recipe as well!

Puretranquility · Jan 29, 2007

jim appleyard said:
Look for "Mytol" and "E-76" in Anchell's "The Darkoom Cookbook". Both of these are homebrew versions of X-Tol and both work quite well.

----/----

Hello,

For all intents and purposes, would you share that the Mytol recipe works Exactly like Kodak Xtol ? If not Exactly, what would the main difference or differences be please..?

((Please, all of you drop me a line at puretranquility2003@hotmail.co.uk for the two curry recipes, if you are interested)),

Puretranquility
---------------------------------------------------------
" Solidity is an illusion, however, spiritual energy can learn "

fhovie · Jan 29, 2007

The main difference between Mytol and Xtol are the chemical they use for Vitamin C - Mytol uses easily atainable sodium ascorbate where XTOL uses something like it that is not available at your local health food store. Also, I am sure Kodak added a lot of stuff so it would keep, work anywhere and put up with anything - where Mytol has only the active working ingredients that are important.

gainer · Jan 29, 2007

The stuff Kodak uses is listed as isoascorbic acid or the isoascorbate. It is the mirror image of Vitamin C. It may be cheaper because it makes little difference if the ascorbate or the isoascorbate (also known and obtainable as erythorbic acid) or a mixture of the two is used. Erythorbic acid is not seen by the body as Vitamin C.

Molecular weights are the same, so it won't make any difference which we use in developers. Erythorbic acid is available at www.chemistrystore.com.

jim appleyard · Jan 29, 2007

Fhovie has it pretty well summed up. X-tol is a fine dev, but the one thing I dislike about it is that you must buy it in 5 liter packages. With Mytol and E-76, i make them up 1 liter at a time and go thru it quickly so my dev is always fresh.

srs5694 · Jan 30, 2007

It's my understanding that XTOL uses Dimezone S, which is a variant of the more common phenidone that's specified in the Mytol recipe. Dimezone S is supposed to last longer in solution, which of course is important for a developer that's going to sit around in a bottle for weeks or months. You should be able to mix Mytol using Dimezone S instead of phenidone, if you like. Most sources say you need more Dimezone S than phenidone when making this substitution. I don't recall the exact amount, but I think it's on the order of 20% more Dimezone S than phenidone.

The real question, of course, is how they work. I've never used Mytol myself, so I can't comment from personal experience. Most people say that Mytol produces results that are very similar to those of XTOL. I don't recall ever seeing a discussion of whatever small differences there are, though.

E-76, BTW, is a variant on D-76 that uses ascorbic acid rather than hydroquinone and phenidone rather than metol. Although it's similar to XTOL in many ways, I wouldn't call it a direct replacement.

MikeSeb · Jan 30, 2007

I find Mytol and Xtol to be very close in appearance with a wide range of films. Xtol may give just a touch finer grain, but I can't say this with certainty. Bottom line, Mytol's a great developer, and I use it interchangeably with Xtol. I'll not likely go back to Xtol when my current stock runs out.

I've also used PC-TEA more frequently these days, just because of its longer shelf life. I find it to give larger grain than either Xtol or Mytol, which is understandable perhaps based on the absence of sulfite in PC-TEA. But it's another option especially if your volume of B&W film processing is low and it tends to be a long time between rolls.

Puretranquility · Jan 30, 2007

Thankyou to All of you !!

Hello,

I send a Copious amount of Sincere thanks to all those who responded.

Please drop me a like at puretranquility2003@hotmail.co.uk for the two curry recipes, if you are interested,

Puretranquility
---------------------------------------------------------
" Solidity is an illusion, however, spiritual energy can learn "

lamda · Jan 31, 2007

XTOL patent

Anchell and Troop, in The Film Developing Cookbook (1998, p. 49) say that "a close approximation to the formula for XTOL is published in U.S. Patent 5,756,271". This is available at http://www.uspto.gov/patft/index.html

If I recall correctly, the patent contains several formulas. Anchell and Troup say this is the one you want:

Part A (Dry Formulation):
Sodium sulfite 10 g
Diethylenetriaminepenta-
1 g
acetic acid, pentasodium salt
Sodium metaborate (8 mol)
4.0 g
4-Hydroxymethyl-4-methyl-1-
0.2 g
phenyl-3-pyrazolidone
Part B (Dry Formulation):
Sodium sulfite 75 g
Sodium metabisulfite 3.5 g
Sodium isoascorbate 12 g
______________________________________

Part A was dissolved completely in 850 ml of water at room temperature, having a pH of 10.19.+-.0.05. Part B was then dissolved in the solution at room temperature, and water was added to 1 liter. The final pH was 8.20.+-.0.05.

I have not mixed this myself, but I plan to once I finish building my darkroom. (Did you know that jackhammers are heavy? )

jim appleyard · Jan 31, 2007

lamda If I recall correctly said:
That's easy for you to say! :confused: Just what the heck is 4-hydroxymethyl-4-1?
(that is a rhetorical question, chem gurus need not answer).

I'll just stick to easy to follow recipes like Mytol, E-76 and D-23!

gainer · Jan 31, 2007

Sodium metaborate 4 mol and 8 mol are the same according to the manufacturer. The molecule of the 8 mol is twice the weight of the 4 mol because it has twice as much of everything including water. The other stuff is a relative of phenidone. The specified weight got misplaced because of some idiotsyncracy of typesetting. I can answer because I am not a chem guru. A chem guru is one of those hippity-hop critters that lives in Australia.

slad · Feb 1, 2007

Hi,

Check out this site. A Mytol formula is there.

Sal

http://www.photosensitive.ca/wiki/index.php/Main/EasyFilmDevelopers

eclarke · Feb 1, 2007

Finding the DTPA was the hardest part of making this formula. I have a great lab chemical supplier here in Milwaukee and he had to scrounge for 500 grams of it, only one of his suppliers could provide it. I made it, it worked just like the Xtol and I like FX37 better!!!..Evan Clarke

gainer · Feb 1, 2007

MikeSeb said:
I find Mytol and Xtol to be very close in appearance with a wide range of films. Xtol may give just a touch finer grain, but I can't say this with certainty. Bottom line, Mytol's a great developer, and I use it interchangeably with Xtol. I'll not likely go back to Xtol when my current stock runs out.

I've also used PC-TEA more frequently these days, just because of its longer shelf life. I find it to give larger grain than either Xtol or Mytol, which is understandable perhaps based on the absence of sulfite in PC-TEA. But it's another option especially if your volume of B&W film processing is low and it tends to be a long time between rolls.

Here's your chance to test the thesis: added sulfite will make the grain of PC-TEA finer. Add a level tablespoon of anhydrous sodium sulfite to a liter of PC-TEA working solution. It will dissolve quickly. If that makes the grain finer without messing up the sharpness, fine.

Jordan · Feb 1, 2007

gainer said:
Here's your chance to test the thesis: added sulfite will make the grain of PC-TEA finer. Add a level tablespoon of anhydrous sodium sulfite to a liter of PC-TEA working solution. It will dissolve quickly. If that makes the grain finer without messing up the sharpness, fine.

In addition to Pat's suggestion, you can try using sodium metabisulfite. About 10 g of sodium bisulfite added to 1 L of working-strength PC-TEA will give you a developer that has a similar pH and phenidone concentration to MYTOL, diluted 1+3. You can try using published times for XTOL 1+3. (Make sure you use enough developer to prevent exhaustion.)

MingMingPhoto · Apr 2, 2024

lamda said:
XTOL patent

Anchell and Troop, in The Film Developing Cookbook (1998, p. 49) say that "a close approximation to the formula for XTOL is published in U.S. Patent 5,756,271". This is available at http://www.uspto.gov/patft/index.html

If I recall correctly, the patent contains several formulas. Anchell and Troup say this is the one you want:

Part A (Dry Formulation):
Sodium sulfite 10 g
Diethylenetriaminepenta-
1 g
acetic acid, pentasodium salt
Sodium metaborate (8 mol)
4.0 g
4-Hydroxymethyl-4-methyl-1-
0.2 g
phenyl-3-pyrazolidone
Part B (Dry Formulation):
Sodium sulfite 75 g
Sodium metabisulfite 3.5 g
Sodium isoascorbate 12 g
______________________________________

Part A was dissolved completely in 850 ml of water at room temperature, having a pH of 10.19.+-.0.05. Part B was then dissolved in the solution at room temperature, and water was added to 1 liter. The final pH was 8.20.+-.0.05.

I have not mixed this myself, but I plan to once I finish building my darkroom. (Did you know that jackhammers are heavy? )

did yo uever mix this up yourself? if so how did it go? also how do i buy "diethylenetriamine-pentaacetic acid, pentasodium salt (40%)" and the other odd named chemicals?

abruzzi · Apr 2, 2024

for a 17 year old thread, my biggest question is: did anyone get the curry recipe?

Sidd · Apr 3, 2024

MingMingPhoto said:
did yo uever mix this up yourself? if so how did it go? also how do i buy "diethylenetriamine-pentaacetic acid, pentasodium salt (40%)" and the other odd named chemicals?

I have recently mixed up this Xtol (type) developer according to formula in FDC. The results are satisfactory to me. I am giving below the link of my Facebook posts, please see the photos and comment.

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albada · Apr 3, 2024

MingMingPhoto said:
also how do i buy "diethylenetriamine-pentaacetic acid, pentasodium salt (40%)" and the other odd named chemicals?

Artcraftchemicals.com sells it. Search for DTPA. They are near you in NY, so shipping will be cheap.
They also sell most (or maybe all) of the other chemicals. Photoformulary.com also sells chemicals (but not DTPA).
You can buy isoascorbate from Amazon; search for "ascorbate powder".

koraks · Apr 3, 2024

Sidd said:
I am giving below the link of my Facebook posts

Note that these are unavailable to anyone without a Facebook account, and the link is subject to change on Facebook's discretion. I'd suggest reposting the most relevant bits here if you want people to be able to read it and your content to remain available.

Formula for Kodak Xtol please..

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