I use carolina. and I think they have the best idea for nic storage...they recomend storing it under an inert gas ..it's an added expense but I think it's worth it.if it comes down to the FDA going medieval on us it is most likely what I will do.
Well, think it through.
You have a bottle, you fill it to the neck with your nicotine. So, now you have, what, a 1" diameter surface area for the nicotine to interact with the air.
There is little air in the remaining space in the neck of the bottle. There is a fixed amount of oxygen in that air.
The nicotine is in solution, it isn't 100% nicotine or even close.
Just how much oxidation do you suppose is going to take place?
Me? I get liters of nicotine in 250 ml bottles. I put them into a baggie, then into a plastic storage box, then into the freezer.
Why the freezer? Because it is cool and dark. Also, nobody is going to knock them over in there, in the little container.
I work off a single 250 ml that has been broken down into 1-120 ml bottle and 2 60 ml bottles. I keep those in the freezer too.
Again, dark, cool, safe, and all my nicotine (stored and working) is in the same place.
I use this method because it keeps air and light away from the stored nicotine and minimizes it in the working nicotine.