Q:

Argon to store chemicals?

I have a tank of argon for my TIG welder. 
I was wondering, if I use dark glass bottles and fill the air space with argon, will the solutions keep longer? will it be the same as floating lids/accordeon bottles? I don't have any of those.

A:

Nitrogen is normally used because it is inert, so is argon, you should be OK. Aside from the liquid air junction, these fluids contain dissolved gases, which incudes oxygen. Nitrogen or argon, should act to lengthen the shelf life of stored chemicals. However, father time works it's dirty deed. 

