How long can I store RA-4 chems?

[SpeedGraphicMan]

Hello all!

I have 10 liters of unmixed RA-4 chems.

How long can I keep them before spoiling?

Should I refrigerate them?

Thanks in advance.

[polyglot]

They are packed in nitrogen and in such a state will last years. If you keep them as concentrate and replace all the air in the bottles with butane, they should continue to keep for years. Some chemical bottles have crap lids though that don't re-seal, so be careful of that and rebottle in glass or PETE if necessary.