Mineral spirits not drying on unfinished hardwood floor (12 hours later)
No, sanding will not do any good. Warm air is likely the only thing that will eventually evaporate the excess, which probably soaked deeply into the wood if it was poured onto it. You are supposed to put it on the cleaning rag, not directly onto the surface, for this very reason. You can usually rent the kind of blowers used to dry out flooded areas. If not, get some duct tape, a hair dryer and a pole lamp or a chair and duct tape the hair dryer to the pole/chair so that it is pointing down at about a 45 degree angle (not straight down or you may burn out the dryer).