dangerous amateur - 15-6-2012 at 03:26
Hi,
i've got an offer for resorcinol, but it seems to be very old stuff.
Question:
Does this stuff degrade over time?
Most data sheets I read say something between 12 months to 3 years if stored dark and airtight.
Are these values overcautious?
Most plastic bottles are not really airtight.
Do you have an opinion on that?
bahamuth - 15-6-2012 at 03:33
I have some resorcinol that must be at least 30 years old in a glass jars capped by a bakelite cap with those waxed paper cap liners and it is almost
pure white with a little greying of the compound but not much.
So I would say it can last a long time.
Do you think that the stuff you buy from Sigma or any other supplier is less than 12 months, I doubt it. By in all fairness, if you need 99.999%
purity you should probably get it as fresh as possible....
dangerous amateur - 21-6-2012 at 06:48
Thank you for your opinion. No, I don't need it superpure.
I'll try it and see how it looks...