What is your floor made of? If it's one of those pretty finished-cement floors, or maybe certain kinds of semi-porous tile, it could be that the cleaner caused actual salt to leach up out of the surface.
Our garage floor is the standard cement, and it regularly develops salty crusts in the areas where moisture occurs... because of residual salt in the cement mix.
Our garage floor is the standard cement, and it regularly develops salty crusts in the areas where moisture occurs... because of residual salt in the cement mix.