Mixed Xylene is used as a solvent in many industries, such as paints & coatings, pesticides, printing, rubber & leather, etc. It can be used in place of toluene where slower drying process is desired.
Xylene is used in the laboratory to make baths with dry ice to cool reaction vessels, and as a solvent to remove synthetic immersion oil from the microscope objective in light microscopy. In histology, xylene is the most widely used clearing agent. Xylene is used to remove paraffin from dried microscope slides prior to staining. After staining, microscope slides are put in xylene prior to mounting with a coverslip