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Bit curious why you might want to know this. By some rule of thumb, in chemistry, a mole (unit mass of element/compound) is a depressingly small quantity as may fit in the palm of your hand easily, and this, through the avagadro number represents the number of molecules you have. Since this number is something like 6x10exp23, then you get a sense of just how small we are talking. I wonder if the issues you need to consider are more about surface tension and viscocity.
I am trying to put together some unrelated items into a new system, and was told by the manufacturer of one of the items that if the EthGly is larger than 25 microns, that it will not fit through the orifices of the part.
I have a meeting scheduled with their head engineer on Wednesday, so I will just have to follow up with him on if it will work, and I may just have to buy one of the items for $150 and test it in my kitchen sink...
it is definitelly smaller than that. 25um is about the size of some cells. 1 ethylene glycol molecule is about 4 atoms long... It is at a much much much much smaller scale then microns. We're talking fractions of a nanometer, so I think you should be fine.
*EDIT: at that scale, I think the forces of interation play a bigger role than the size.
The item is designed for ambient air, and I am trying to push a fluid through it.
I understand that air IS a fluid, or at least acts like one, so I am rather confident that it will work. I think that it may just come down to trial and error, but I have a pretty decent budget to do my research on this project.
