You guys could solve all your problems and just ditch HC110 and use PyroCat-HD instead. Just saying
Sean could make Momme Andresen honory member posthum and oblige all Apug fellows to only use Rodinal.You guys could solve all your problems and just ditch HC110 and use PyroCat-HD instead. Just saying
That is also what I suspect.The alkali is so different in this version, I doubt if it would do the same thing when vinegar is added. IDK, just saying.
PE
Anyone who does what you do deserves the same shame you do.I seriously doubt that I have publicly shamed myself by describing what the vast majority of B&W workers do with their used chemicals...
Save them in the empty, rinsed-out 1.5 liter PETE bottles my orange juice comes packaged in. Take those, properly labeled "photo chemicals," to the household hazardous waste drop off point at our local landfill several times each year. In other words, the right way....Please enlighten us as to how YOU dispose of your B&W chemicals.
Well, I just discovered, after all my paper developer went bad, that I can use HC-110 as a paper developer also. So I think I'll stock up from Freestyle while I can. I think they still have the old stuff. Sure wish they would invent a paper developer concentrate that came in little sealed packets (like mustard packets at a fast food joint) that made only 1 quart at a time. Don't get into the darkroom enough to justify making up 2.5 gallons of paper developer all at one time.
I think they used to make Dektol in quarts? You can also look into LPL developer, liquid or powder.Well, I just discovered, after all my paper developer went bad, that I can use HC-110 as a paper developer also. So I think I'll stock up from Freestyle while I can. I think they still have the old stuff. Sure wish they would invent a paper developer concentrate that came in little sealed packets (like mustard packets at a fast food joint) that made only 1 quart at a time. Don't get into the darkroom enough to justify making up 2.5 gallons of paper developer all at one time.
Why would anyone want to do this at home? Anyone who could try something like this is far more than capable of mixing any other developer formula in a small, convenient quantity that will not spoil left unused. And the very long shelf life is probably the only real advantage HC110 has. Apart from that, it's probably yet another, rather indifferent developer that doesn't really excel at anything else.... Additional aspects of this proposed scheme could be discussed. For example, this is probably not the least expensive way to accomplish the goal, but is is something that could be done in a home lab (assuming it works), whereas using gaseous SO2 and HBr would not be easy for a home chemist.
As you say, shelf life is one of the main advantages of HC-110. Another is convenience of use, because it is a liquid. A third is that it is an economical developer.Why would anyone want to do this at home? Anyone who could try something like this is far more than capable of mixing any other developer formula in a small, convenient quantity that will not spoil left unused. And the very long shelf life is probably the only real advantage HC110 has. Apart from that, it's probably yet another, rather indifferent developer that doesn't really excel at anything else.
IThe bottle has been opened for almost 3 years, it seems to be keeping its qualities .
My experience with L110 mirrors this as well.I purchased a bottle of L110 in September, 2016 . The bottle has been opened for almost 3 years, it seems to be keeping its qualities .I use it rather sparingly , D76 is my choice of developers.
That's indeed very encouraging. If the new HC110 has similar storage life, there's no good reason to lament about the switch to new formulation.
Why would anyone want to do this at home? Anyone who could try something like this is far more than capable of mixing any other developer formula in a small, convenient quantity that will not spoil left unused. And the very long shelf life is probably the only real advantage HC110 has. Apart from that, it's probably yet another, rather indifferent developer that doesn't really excel at anything else.
Wow, I don't know what happened, but I just tried posting a proposed method for adding SO2 and HBr to an HC-110-like mixture, and it didn't post. So in somewhat shortened form, here is my proposal, not including all of the explanatory stuff.
To an HC-110-like mixture that has not had the SO2 or HBr added yet, add sodium sulfite and an excess of aquaous hydrobromic acid. After the reaction has taken finnished dehydrate the mixture with anhydrous magnesium sulfate. Filter out the solids. This will remove the MgSO4, taking the water with it, as well as solid NaBr. If necessary treat again with anhydrous MgSO4 to remove the last traces of water. Depending on the solubility of NaBr in the fake HC-110, there may be some Na+ and Br- ions still left in solution. This probably won't hurt anything.
Additional aspects of this proposed scheme could be discussed. For example, this is probably not the least expensive way to accomplish the goal, but is is something that could be done in a home lab (assuming it works), whereas using gaseous SO2 and HBr would not be easy for a home chemist.
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