We know that some compounds need a good solvent in order to get them to suspend so the shelf life is pretty good with these. Olive oil is used on some of these as well but it's been pointed out that some light solvent (BA) is needed to keep it from going rancid.
What about compounds which can be used in water solutions? Does the water form bacteria if left for too long? Can you put in a low grade solvent to keep it preserved?
What about compounds which can be used in water solutions? Does the water form bacteria if left for too long? Can you put in a low grade solvent to keep it preserved?