Chlorohydroquinone for the masses.

I have been searching around for a source, that I could obtain Chlorohydroquinone from. KennyE gave me 25 grams, but I can not keep going back to him requesting more and more as I need it.

A new friend of mind used Chlorohydroquinone in many of his developments, which came out real good. I have some of his formulas and I will use them once I get enough Chlorohydroquinone on hand.

The source that I am using will be selling 25 grams and 100 grams units when the item arrives.

I do not know the price, but 25 grams may cost $25.00 at a $1.00 per gram. I am really not sure.

But if you are interested, let me know by using this forum and by PM.

#1 Son

Just doing a quick google search, came up with one supplier and they want $52 for 25 grams.

madgardener said:

Just doing a quick google search, came up with one supplier and they want $52 for 25 grams.

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Oh that's just great! Now the price just went from $1.00 a gram to a $1.80 a gram. Would have been better to just say that $1.00 per gram is a very fair price. Just a little humor of course. I've only seen a couple of formula that I would like to try that called for it. JW

My next door neighbor used to make it at EK. He said that it is not all that great. I think Grant Haist would agree with that now.

PE

I have used it in the past and decided it is not worth the effort. It will do nothing that more standard developing agents won't do.

PE and Jim, that's nice to know and I can now check it off my list. It was on a short list and I'd probably never have gotten around to it in this life anyway. I have pretty much settled my developer choices, but it's fun to play chemist once in a while. JW

madgardener said:

Just doing a quick google search, came up with one supplier and they want $52 for 25 grams.

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What is the name of the supplier? Because I discovered that several places list it, but when it came to ordering it. They were all out. And the ones that I contacted would not sell it, unless I was a business.

Audrol, is a good developer on its own. With at least 40 or so formulas out there on the web. And I have came across 4 that use it with Metol and PyroCat, that I would love to try.

I understand your position fellas; it is pretty much like cars. Some people love Fords, and others like Buick. Me, I love Dodges/MoPar.

Metol, PPD, Para-Aminophenol, Pyro, and PyroCat, all have their followings. Can I just have mind?

Adurol forumals are old; but then, so is D-76 and Pyro. Even AcuFine is close to 60 years old or more.


#1 Son

To everyone:

I like this forum. But as a parent, there is one thing that I learned.

Be positive, towards your children. Or anyone for that matter.

When my son came to me with an idea that I​ thought was stupid or dump, I berated him for it. And to my embarrassment, he took his idea to his mother. Who assisted him. His project turn out to be successful. I felt foolish and ashamed, that I did not support him.

I WILL NEVER DO THAT AGAIN.

#1 Son

madgardener said:

Just doing a quick google search, came up with one supplier and they want $52 for 25 grams.

Click to expand...

What is the name of the supplier? Because I discovered that several places list it, but when it came to ordering it. They were all out. And the ones that I contacted would not sell it, unless I was a business.

Audrol, is a good developer on its own. With at least 40 or so formulas out there on the web. And I have came across 4 that use it with Metol and PyroCat, that I would love to try.

I understand your position fellas; it is pretty much like cars. Some people love Fords, and others like Buick. Me, I love Dodges/MoPar.

Metol, PPD, Para-Aminophenol, Pyro, and PyroCat, all have their followings. Can I just have mind?

Adurol forumals are old; but then, so is D-76 and Pyro. Even AcuFine is close to 60 years old or more.


#1 Son

#1 Son, please learn that there is no "magic bullett" in photographic system design from emulsions to developers to fixers. And so, D76 is still in use because it works.

Different cars are on the road, but they all have wheels until they invent the flying car! Even then, they left them on in "Back to the Future" because they were useful. Well Chloro-HQ is useful. It develops, but what else does it give? Kodak gave up on it due to expense and lack of any significant advantage. Overall, the phenidone family probably eclipsed it for a number of reasons.

So, this is the story of the Edsel vs the Mustang or some such. Both cars and both useful and one fell out of favor for many reasons.

And no one is discouraging you from trying it. Maybe you will hit the jackpot. But, after years of R&D at EK, I doubt it.

PE

I'd also like to get a hold of at least 100g of chlorohydroquinone for use in the Defender 58-D paper developer. I have a bunch of very old paper and it looks like Defender 58-D is superior to other developers used with BZT or KBr, for suppressing fog.

Defender 58D Chlor-Hydroquinone Developer (Stock Solution)
For warm tones on Varigam paper
Water (at 125F or 52C) 500.0 ml
Sodium sulfite, dessicated 16.0 grams
chlorhydroquinone 4.0 grams
Sodium carbonate, anhydrous 16.0 grams
Potassium bromide 0.5 grams
Water to make 1.0 liter

Dilute one part stock to one part water for use.

If sodium carbonate, monohydrated is used the amount is 18.7
grams

#1 Son said:

What is the name of the supplier? Because I discovered that several places list it, but when it came to ordering it. They were all out. And the ones that I contacted would not sell it, unless I was a business.

Audrol, is a good developer on its own. With at least 40 or so formulas out there on the web. And I have came across 4 that use it with Metol and PyroCat, that I would love to try.

I understand your position fellas; it is pretty much like cars. Some people love Fords, and others like Buick. Me, I love Dodges/MoPar.

Metol, PPD, Para-Aminophenol, Pyro, and PyroCat, all have their followings. Can I just have mind?

Adurol forumals are old; but then, so is D-76 and Pyro. Even AcuFine is close to 60 years old or more.


#1 Son

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I don't remember the name of the place, but I did a cut and past of the chemical into Google, and clicked on shopping. 2 listings came up from the same company.

Chlorohydroquinone, is now listed on Ebay. Cost is $38.00 for 30 grams. I purchase the amount I wanted, and I am good to go.

Their is only 28 items left gentlemen. Do not wait around, thinking should you or should you not. Besides, you can always sell it to someone, maybe even me when I run low or completely out.

My thinking is like this. Chlorohydroquinone is not being used in photographic developers today, because the companies that made it, used it, or sold it. Went out of business. They went out of business because of us. We changed. Millions went to digital, and left them hanging. Those persons out there that once use Defender, Dupont, and Edwal formulas that used Chlorohydroquinone, can once again, get back what they lost and miss.

So give it a shot. If you do not spend your money on the things that you want, our wives will. And the GOP and the Demo's will decide to shut the government down again, and there goes our tax dollars. So live a little. You earned it and owe it to yourselves to enjoy life.

#1 Son

Chlorhydroquinone went into obscurity long before any major photographic company quit making it.

Now, how do you "prove" what you get is Chlorhydroquinone and not some miscellaneous organic chemical that might or might not be Cl-HQ. I suggest that you test the melting point as established by the chemical industry just as a check and balance to what you get from E-Bay.

PE

#1 Son said:

My thinking is like this. Chlorohydroquinone is not being used in photographic developers today, because the companies that made it, used it, or sold it. Went out of business. They went out of business because of us. We changed. Millions went to digital, and left them hanging. Those persons out there that once use Defender, Dupont, and Edwal formulas that used Chlorohydroquinone, can once again, get back what they lost and miss.


#1 Son

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I was under the impression the volume for Chlorohydroquinone was not for use as developers, but in organic chemistry.

Many companies that used Chlorohydroquinone are still in business making developers, Ilford, May & Baker (now Champion) etc. What's sold now is a much lower lower grade than the photographic grade Chlorohydroquinone manufactured by companies like May & Baker in the past.

Chlorohydroqinone was mainly used in Warm tone paper developers but the introduction of Phenidone meant more economic (and lower toxicity) warm tone developers were easy to formulate. If you substitute Phenidone for Metol in an MQ paper developer you get much warmer tones which initially caused problems (where cooler tones were required) until the formulae were changed to include Benzotriazole. So a neutral toned PQ developer uses KBr and Benzotriazle and and almost identical warm tone PQ developer uses just KBr (a bit more than in a similar MQ formula).

Ian

PE:

I am not a chemist, nor do I have that skill set. But you do.

I can ship a sample to you for testing if you like. At no cost to you. And with your knowledge of things. You could let me know if I was hoodwinked or not.

Because..., since we are supposed to be a group of intelligent beings, that is suppose to be helping, assisting, and in some cases. Guiding each other. Why can we not just step up and help each other. In the areas that we can.

Why must there always be so much negative input. I want to do something. Can you guys please assist in a manner that is helpful. I am not trying to go against the grain. I merely want to try something different.

PE, if it is not the true item, I still have the Ebay guarantee of getting my funds back. Maybe not all, but it pretty much like anything else one would purchase. So please......, just a little support here fellas.Please.

#1 Son

What has been so negative and unhelpful?

There's been good information about this chemical, advice about testing it, suggestions that it has few or no advantages over currently available reducing agents, suggestions for where to get it, information about the history of it's use and manufacture and why it fell from use, and a lot of this information has been given to you by people who have had careers in photochemistry.

The fact that KennyE (a man with so many bizarre bees in his bonnet it's amazing he can hear himself think) is enthusiastic for it doesn't alter the fact that it seems to be pretty much obsolete.

No-one's stopping you experimenting, and what's more you now have a lot more information than you started out with, which should only encourage you

pdeeh said:

What has been so negative and unhelpful?

There's been good information about this chemical, advice about testing it, suggestions that it has few or no advantages over currently available reducing agents, suggestions for where to get it, information about the history of it's use and manufacture and why it fell from use, and a lot of this information has been given to you by people who have had careers in photochemistry.

The fact that KennyE (a man with so many bizarre bees in his bonnet it's amazing he can hear himself think) is enthusiastic for it doesn't alter the fact that it seems to be pretty much obsolete.

No-one's stopping you experimenting, and what's more you now have a lot more information than you started out with, which should only encourage you

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KennyE, got nothing to do with this. He is in his own world.


I am not looking for a fist fight or a word fight here. I know that there is not one developer that fits all.

1969 Cameros are obsolete, by today's standard, yet people are willing to pay 10 times or more for what they cost new.

For if I were to talk to a person that loves digital photography, he would say that everything that we are doing is obsolete.

This hobby that I chosen, only have so many tools that are still available to it. And if we do not support it and use it. We will lose it. PyroCat, was thought to have little use, until someone found a better way to use it or improve upon its use.

And yes.., I do thank everyone for their input. Because I do have more information than I started off with. And that would not have happen without you guys.

All I am saying, is just a little more positive feeling and input here. Give me some good ideas to run with. Enough of the doom day stuff. I am truly asking for a lot?

#1 Son

It isn't at all clear what you are asking for, except perhaps to feel validated in some way.

I've offered a positive spin on the thread and suggested you carry on with your experiments. It's hard to know what else to offer, if you experience that as negative.

Adurol, does boast formulas that was used 100, 90, and even 70 years ago. I was hoping to get information and ideas of what could be done with it today.

Edwal made FG7 with it. Could we not improve upon it. Do we truly need the original formula, to continue. Or can we with our knowledge and modern computers, come up with a better mouse trap.

I want to do something with this. But I do not want to do this alone. Because if I did, I would not be on this forum. I would just do it myself. But I want to do it with friends and people that feel the same about this hobby as I do. I want to get enjoyment with you guys; as a group. To start and complete something together. I do not want to just know of you by the things you wrote. I want to sense and feel your passion towards the hobby we chose. And hopefully chose together.

I am looking for the "human" connection, that makes us what we are. Beings that takes on challenges and conquers it.

I am appealing to what makes you, who you are. I believe that in everyone of you, there is that creative side, an explorer side, just fighting to get out.

I came here because I want an active forum, with members willing to do something. Not as individuals, but as a group, that we claim to be.

I promise, that I will not hurt you. I will not abandon you. I will not make fun of you. Because that is not the reason that I am here. I am here because I want to have fun. And I do not want to do it alone. I will travel to meet anyone in the America. Because I love a good home BBQ.

And if I visit your country, I will visit you too. Hell, I love to eat your foods. The more the better, because I need change from eating so much "fast foods".

But you got to have "beer" and Rolaids

#1 Son

Somewhere I have the purity grade listed for photographic Chlorohydroqinone it's very much higher than the 85-90% pure Chloroquinone that's being sold these days which is why no-one is using it..

It went completely out of production for a few years but is now used in some areas of organic chemistry where lower purity is acceptable.

Ian

mass interest

Might I suggest that maybe the masses are not interested because the prices are so high and the prices are so high because the masses are not interested?

i wouldnt buy it from ebay but from a chemical supplier...

Ian, with all your years in photography. Can I draw upon you, some useful formulas, that use Adurol?

I would like obtain a better grade of material. But I can only use what is available at this time frame.

I do have a few forumulas, but I want to study and go over as many as possible. Because I really feel that more can be obtain from this agent, by using it with others that just might enhance its use.

#1 Son