Question about nicotine liquid...

[namuch]

I have a 120ml bottle of 100mg nicotine liquid that I got from a reputable vendor almost a year ago to try my own liquid mixing. When I got this liquid it was almost clear, with just a very light tint to it. I used only about 5ml from it at the time, and it has been in storage all this time (not refrigerated, but cool and dark storage).

I was thinking about using it today to boost the nicotine level in one of my other juices, but it how has a pronounced golden tint to it. It's still clear, but it definitely has gone through a color change over the year.

So, is it still safe to use? Has the nicotine broken down the pg or something to that effect? Is this normal?

Thanks for any input..

 

[player30]

Does it have an expiration date on it? I have some nic pg, and it does have a exp date on it. I have not had it long enough to answer your question about the color change.

 

[markfm]

From a post by Kurt in the DIY section "Coloration of unflavored nic juice is primarily from oxidation of nic to nicotine-N-oxide, which is yellow/brown"

As a note, nic base shelf life is driven by its base, either PG or VG. PG shelf life is about 2 years, stored cool (40F), with VG shelf life noticeably shorter, as little as 14 months (again, stored cool, kept out of light and away from UV sources).

If your stuff is coming up on a year old, you might want to use it up.

 

[namuch]

The liquid is in 100% pg suspension, and the expiration date on the bottle is Feb 2012. So, I'm gonna guess assume it is still good.

Thanks for the responses!