Mineral spirits are a type of hydrocarbon solvent used for thinning oil-based paints, cleaning paint brushes, and other purposes. They are highly flammable and can be harmful to the environment if not disposed of properly. There are a few different ways to get rid of mineral spirits, depending on the quantity and the local regulations.
For small amounts of mineral spirits, such as what might be left over in a paint can, the best way to dispose of them is to let them evaporate. This can be done by pouring the mineral spirits into a shallow dish and placing it in a well-ventilated area. The mineral spirits will evaporate over time, and the residue can be disposed of in the trash.