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#1
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brown glycin
I have a 100g sealed plastic container of Formulary glycin that's 2-3 years
old. It's a brownish color. Does that mean it's definately bad or is there hope? -- Look at the world today. Is there anything more pitiful? What madness there is. What blindness. What unintelligent leadership. A scurrying mass of bewildered humanity, crashing headlong against each other, compelled by an orgy of greed and brutality. The time must come my friend, when this orgy will spend itself. When brutality and the lust for power, must perish by its own sword. -Lost Horizon, 1936 |
#2
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Chuck it or use it, what difference does it make,....
just don't use it for something important. In article AGJVc.1665$oD2.459@trndny08, "geo" wrote: I have a 100g sealed plastic container of Formulary glycin that's 2-3 years old. It's a brownish color. Does that mean it's definately bad or is there hope? -- LF Website @ http://members.verizon.net/~gregoryblank "To announce that there must be no criticism of the President, or that we are to stand by the President, right or wrong, is not only unpatriotic and servile, but is morally treasonable to the American public."--Theodore Roosevelt, May 7, 1918 |
#3
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Itis probably bad. None the less, you could make up a batch
and try it on something that does not matter. The best way to keep glycin is in percent solution and thereafter to dilute it as needed for working solutions. Francis A. Miniter geo wrote: I have a 100g sealed plastic container of Formulary glycin that's 2-3 years old. It's a brownish color. Does that mean it's definately bad or is there hope? |
#5
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"geo" wrote in message news:AGJVc.1665$oD2.459@trndny08... I have a 100g sealed plastic container of Formulary glycin that's 2-3 years old. It's a brownish color. Does that mean it's definately bad or is there hope? -- Fresh Glycin is grayish. If the stuff is only a little tan it may still be good. Generally a brown color indicates developing agents have oxidized. Badly oxidized Hydroquinone looks like coffee grounds. -- --- Richard Knoppow Los Angeles, CA, USA |
#6
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"geo" wrote in message news:AGJVc.1665$oD2.459@trndny08...
I have a 100g sealed plastic container of Formulary glycin that's 2-3 years old. It's a brownish color. Does that mean it's definately bad or is there hope? Yes, it's bad. It keeps only a few months. |
#7
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"geo" wrote in message news:AGJVc.1665$oD2.459@trndny08...
I have a 100g sealed plastic container of Formulary glycin that's 2-3 years old. It's a brownish color. Does that mean it's definately bad or is there hope? Yes, it's bad. It keeps only a few months. |
#8
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On Sat, 21 Aug 2004 15:54:20 -0700, "Richard Knoppow"
wrote: "geo" wrote in message news:AGJVc.1665$oD2.459@trndny08... I have a 100g sealed plastic container of Formulary glycin that's 2-3 years old. It's a brownish color. Does that mean it's definately bad or is there hope? -- Fresh Glycin is grayish. If the stuff is only a little tan it may still be good. Generally a brown color indicates developing agents have oxidized. Badly oxidized Hydroquinone looks like coffee grounds. Yep. I never got any use out of brown HQ powder. Glcin, though came back like a champ, though, when I got into a hgly alkaline solution. I remember the stuff sizzling when the powder hit the Lye. So, maybe you can try putting into some strong alkaine solution just before diluting to working strength and see if that saves you a bundle on some small and high priced quantity of new powder; sure to start going bad in a year or less. I wonder if Pat Gainer's antifreeze stock slution methods would work here? Worth a try especially if only using it for paper. I used it for film and paper, so maybe I'm brash. Good luck, Robert Vervoordt, MFA |
#9
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Robert Vervoordt wrote:
On Sat, 21 Aug 2004 19:19:43 GMT, Gregory Blank wrote: Chuck it or use it, what difference does it make,.... just don't use it for something important. In article AGJVc.1665$oD2.459@trndny08, "geo" wrote: I have a 100g sealed plastic container of Formulary glycin that's 2-3 years old. It's a brownish color. Does that mean it's definately bad or is there hope? Gregory is right. I found brownish Glycin to work in many instances. I had to adjust amounts with some of the darker stuff, but once I determined the proper amount, I made up a load of concentrated developer and had no problems for at least 2 years, when it was all used up. This was for all Glycin developers, as other agents could go bad sooner. I have some Glycin that is a dark color and when I mix paper developer with it, it stains the paper, so I consider it useless. The developer I mix is Ansco 130. It looks like de-fizzed CocaCola. When new, it worked OK. -- .~. Jean-David Beyer Registered Linux User 85642. /V\ Registered Machine 241939. /( )\ Shrewsbury, New Jersey http://counter.li.org ^^-^^ 22:20:00 up 17 days, 13:57, 3 users, load average: 4.18, 4.15, 4.11 |
#10
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On Sat, 21 Aug 2004 22:25:22 -0400, Jean-David Beyer
wrote: Robert Vervoordt wrote: On Sat, 21 Aug 2004 19:19:43 GMT, Gregory Blank wrote: Chuck it or use it, what difference does it make,.... just don't use it for something important. In article AGJVc.1665$oD2.459@trndny08, "geo" wrote: I have a 100g sealed plastic container of Formulary glycin that's 2-3 years old. It's a brownish color. Does that mean it's definately bad or is there hope? Gregory is right. I found brownish Glycin to work in many instances. I had to adjust amounts with some of the darker stuff, but once I determined the proper amount, I made up a load of concentrated developer and had no problems for at least 2 years, when it was all used up. This was for all Glycin developers, as other agents could go bad sooner. I have some Glycin that is a dark color and when I mix paper developer with it, it stains the paper, so I consider it useless. The developer I mix is Ansco 130. It looks like de-fizzed CocaCola. When new, it worked OK. Yes, that was the formula I was using. I used the brown Glycin once mixing in the usual order and got lousy results, but I can't remember a stain, as the image was so weak that it may not have been strong enough to stain. After experiments on test rolls of film with other formulae, I noticed the fizz. I then made up some Ansco 130, starting with all the alkali in a really small amount of water; Bingo! It fizzed and after mixing in the rest of the ingredients with the proper amount of water, it worked really well. Funny how goofing around in the darkroom can be so much fun. Regards, Robert Vervoordt, MFA |
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