Originally Posted by
tessellahedron
I ordered some tiny vials (2ml I think) with orifice reducers. I considered the roller ball or eye dropper vials (they make them that small!) But the minimum order was 25 and I only wanted 5 or 6. The roller ball would be so awesome if it works and doesn't gum up. I may try it someday unless someone else has. Chemical compatibility is my next concern but the plastic capped vials are used in labs so I'm gonna try them. Good to know aluminum exist. Ty
Remember that for, the same size of opening, the rate at which a vial will be drying out is coarsely inversely proportional to the volume. I.e., a 2ml vial will be drying out 3x faster than 6ml. A too large vial may start to be vulnerable to breaking, so there is some sweet point.