My B2+vodka solution evaporated

[Judd Crane]

I made a solution of vodka (40%) and vitamin B2, 1 mg per drop (maybe 50 drops in total stored in a sealed dropper bottle). After about a month the liquid had completely evaporated. Why did this happen and what can I use, that is easily obtainable, to make a B2 solution?

 

[Peater]

I made a solution of vodka (40%) and vitamin B2, 1 mg per drop (maybe 50 drops in total stored in a sealed dropper bottle). After about a month the liquid had completely evaporated. Why did this happen and what can I use, that is easily obtainable, to make a B2 solution?

The ethanol possibly dissolved the seals if they weren't designed for it. It happens on cars at only 10% ethanol for example.

 

[Judd Crane]

The ethanol possibly dissolved the seals if they weren't designed for it. It happens on cars at only 10% ethanol for example.

I found it strange since I have energin in the same type of bottle with no issue. I guess I will have to try it with distilled water the next time.