AZO?

[athanasius80]

FYI, Azo wasn't even a Kodak invention. It was brought out by the Photo Materials Co. in 1898. EKC bought out Photo Materials in July of that year producing PMC Bromide until (I think) the 1930s, and Azo until... well you know that part already.

C.

 

[Curt]

I like that name, "Photo Materials Co.", they said it better back then.

 

[Gustavo_Castilla]

Here is the answer.
Simple as Azo was and is a properatyry name of Kodak other then Silver chloride.
NO ONE really knows what is on the paper hence no copycats no matter what anybody tells you and nobody really knows .
want to know more go to the getty web site and go to the research deportment and look it up there

 

[Jim Fitzgerald]

Are there any Rodents in Rodinal?

If PE doesn't know, it isn't worth knowing.

Curt,You are killing me with this one!!! I can't stop laughing!!! I'm having a hard time typing. Just what I needed after a brutal day at work. Thanks.

Jim

Oh, by the way was Polymax before or after Mad Max??

 

[Photo Engineer]

Here is the answer.
Simple as Azo was and is a properatyry name of Kodak other then Silver chloride.
NO ONE really knows what is on the paper hence no copycats no matter what anybody tells you and nobody really knows .
want to know more go to the getty web site and go to the research deportment and look it up there

Gustavo;

No one? Really? Kodak and Agfa had almost identical products which were both Chloroiodide contact papers. IDK about you, but I've been able to recreate it from what I know about Kodak emulsions. I can also recreate Lupex, the Agfa equivalent. They are so close it is amazing, really.

PE

 

[Curt]

Jim, all day I thought it was Friday, then I remembered some 5x7's I shot at the Valley of Fire, I spent the last three hours trying to find them, and then I did, I developed six and they were b l a n k, shi*. I think they are in an Efke packet in my Changing Room.

I might crawl in there later and take a nap until it's really Friday then start all over. Remembering what Ron said about rodents, I've been hearing a scratching for months but couldn't find the source until this afternoon. It's a squirrel in the soffit of my front porch. I quickly opened the door and there he/she was looking down at me with the "What!" look on its face. I said to it, "having a nice time up there?". It jumped to the Walnut tree, which it depleted rapidly this year, and seemed to be laughing at me.

That's how my day went, odd, odd, odd.

Curt

 

[Neanderman]

But, there are some rodents living under my front porch. I've tried alum and it chased them off for a while but they finally decided that they could stand the pucker power of alum and dug through it again today twice.

Does that harden them? Or would you need an acid soil for that?

 

[maxbloom]

Try perchloric.

 

[Photo Engineer]

I'm worried that it might crosslink them all and they might attack me in a united front.

We heard scratching under the front porch for a while, so something was trapped there and either got out or died there.

PE

 

[Michael A. Smith]

Yes, KOdak bought the Azo formula from Photo Materials Co. This information is the article I published on Azo in 1996.

From what I was told, the name Azo came from being able to make prints from all negatives from A-Z.

We are in Europe right now getting ready for Paris Photo where we have a Lodima Press booth and I do not have the data sheet in from of me, but at one time Kodak made Azo in over 30 size, grades O to 5 or 6 and in six or more surfaces. I once calculated that at one time there were over 3,000 Azo products.

It ended with Grades 2 and 3 in one surface in two sizes. In a sense, this is a metaphor for what ahs happened to society.

 

[jbj]

I agree with the thread starter that "azo" implies an organic functional group of general form RN=NR (an azo- functional group)

http://en.wikipedia.org/wiki/Azo_compound

That is what he is asking but I don't think I've seen an answer yet.

 

[Gustavo_Castilla]

almost identical products that is right not the same

 

[Michael A. Smith]

Azo photographic paper has nothing to do with the Azo organic chemicals. I hope I am being clear.

 

[Rob Skeoch]

I thought the silvera name would be a good one for a black and white paper. When I start making my own papers I think I'll call it that.

Not sure how to get rid of the squirels you have, but we have bats in the roof at the cottage.
-rob

 

[Curt]

I'm worried that it might crosslink them all and they might attack me in a united front.

We heard scratching under the front porch for a while, so something was trapped there and either got out or died there.

They were scratching a home in there and never intended to go elsewhere. They are probably under there with a map and headlights, they know every move you are making, there are sleeping rooms, hospitals, planning rooms, nurseries, kitchens, store houses with stuff stolen from your house and bits of clothing from your own dresser drawers. Missing anything? They are planners and doers.

The question is do you start a dialogue with them or commit to all out war?

Chemical weapons are banned in most parts of the world aren't they?

 

[Photo Engineer]

Curt;

I've already started chemical warfare. The first broadside was glacial acetic acid followed by mothballs. Neither worked. Alum was the latest. I'm working on something more dire next! Maybe chromic acid!

The rhododentra and yew seem to be loving the acid though.

Ammonia works but evaporates too fast. It also hurts the evergreens.

PE

 

[maxbloom]

Soak some peanuts in a sodium fluoroacetate solution. That ought to do it.

 

[richard ide]

Rodent Rapid Fixer:

P E

You must have both of these in your lab and know to what I refer.
Mix solutions of chemical A with chemical B and filter. Filter and discard solvent. While still wet, deposit very small globs of the precipitate in the area likely to do the most good. Action will start when dry and you can hear the results. Then call Coroner
I can clearly remember my dad's invocation of the spirits when he walked across the floor where I had spilled some earlier. He worked for Dept. of Defense.
This is a non hardening fixer.

 

[maxbloom]

P E

You must have both of these in your lab and know to what I refer.
Mix solutions of chemical A with chemical B and filter. Filter and discard solvent. While still wet, deposit very small globs of the precipitate in the area likely to do the most good. Action will start when dry and you can hear the results. Then call Coroner
I can clearly remember my dad's invocation of the spirits when he walked across the floor where I had spilled some earlier. He worked for Dept. of Defense.

OMG I know exactly what you're talking about. Killer idea. Makes for some funny results if you put it around ant-hills, too.

 

[richard ide]

A quart or two of ethyl mercaptan would probably evaporate more slowly than ammonium hydroxide.

 

[jgjbowen]

Someone please remind me that the next time I need to get rid of some vermon to search for AZO on APUG....

 

[Photo Engineer]

Actually, t-butyl mercaptan is just about right. After all, skunks use it!

I have no idea what you refer to as A and B unless it is the purple stuff? Actually, that won't work very well from prior experience, although I did blow the seat out of someone's pants by putting some on a chair seat as a teen.

I do have the ingredients to make tear gas though, but that would drive us away as well.

PE