-1
$\begingroup$

I'm being offered to share some puriss Ethanol. Can I store it long term in any plastic container without the slightest contamination/reaction from the plastic? I have HDPE, PET, but I could buy another type if it's affordable (please don't answer PTFE).

If not, would an HCl > distilled water pre-rinse be sufficient to store it in a glass bottle?

$\endgroup$
  • 2
    $\begingroup$ Regarding trace ontamination, then generally, organic liquids are best stored in glass ( avoiding extraction ) and inorganic liquids in plastics ( avoiding trace metals from glass ). Surely there are exceptions as hydrofluoric acid or oxidating liquids. $\endgroup$ – Poutnik Sep 17 at 12:38
0
$\begingroup$

I cannot say for certain so take my advice with a grain of salt, but if you cannot use PTFE, than HDPE is almost as good. Very few chemicals I have ever used have ever interacted with it and if you need something unreactive, HDPE is a pretty safe bet on top of being abundantly available.

PET, although very transparent, is very hit and miss when it comes to reactivity and I wouldn't recommend it.

| improve this answer | |
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.