Vitamin C shelf life?

szazs

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Dec 19, 2005
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Another Plac
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Found an unopened bottle of vitamin C crystals I forgot I had. How long is this stuff any good as a developer/additive?
 

htmlguru4242

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Aug 9, 2005
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As long as it was unpoened, a LONG time. It's just ascorbic acid, so as long as its still a dry powder, you're good.
 

nworth

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Aug 27, 2005
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The uncontaminated powder will last a very long time as long as it is kept sealed, away from light, with limited air. Solutions spoil rather quickly.
 
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