After cleaning brushes or any time you need to dispose of mineral spirits you should place the mineral spirits in a safe container like a jug or glass jar etc and then dispose of it with hazardous waste.
However if you cannot dispose of it with hazardous waste then you could dilute it with some some in a bucket and then pour it out onto a street or on the ground.
When I didn't have any hazardous waste disposal sites I would just dilute it water and pour it out onto the ground although it's not the best way to dispose of it.
If you have a hazardous waste drop off site then it's best to do that.
Another option is to open the container and allow the used mineral spirits to evaporate into the air and the hotter the weather the faster the mineral spirits will evaporate.
Mineral spirits are organic solvents you use for cleaning equipment and thinning paints.
The solvent mineral spirits is also called Stoddard solvent or white spirit and is also used as a cleaning agent.
Mineral spirits are made via the petroleum distilling process.
Mineral spirits are also heavily refined when compared to paint thinner.
Acetone and mineral spirits are not the same, and should not be treated as if they are.
Part of the confusion between mineral spirits and acetone comes from the fact that both are used as thinners.
Painters commonly use mineral spirits, for example, to thin the paint that they put into paint sprayers.
Acetone, on the other hand, is used to thin lacquer.
Mineral spirits often contain substances, such as toluene, that are CERCLA hazardous substances.
Common uses for mineral spirits include.
Cleaning Paint Tools. Mineral spirits are excellent for dissolving paint.
Degreasing Vehicle Parts. Another common use of mineral spirits apart from thinning paint is degreasing.
As A Solvent For Thinning Paint. This one is the most common use of mineral spirits.
As A Cleaner For Floor Scuffs.