Stone tile is popular for bathrooms walls, floors and vanities for its beauty and durability. It stands up to heavy foot traffic and steamy showers. Yet many types of stone are etched or dulled by the acids in commercial cleaners. That includes marble, limestone, porcelain and other unglazed ceramics. Experts recommend pH-neutral cleansers for everyday care and to clean light stains, like mud splatters that don't penetrate the surface. Stone tile sponges up oily stains like lipstick, nail polish and baby oil, however. These require alkaline cleansers [source: Bane-Clene].
With a pH of around 9, baking soda makes a good spot-cleaning poultice. Coat the stain with a thick paste of baking soda and water. Give the poultice 24 to 48 hours to draw out the stain, and then rinse and dry the surface thoroughly.
Baking soda is useful in another tile-related capacity. Read on to see how it can help clean the space in between.