The strong acid can actually eat away surfaces.
Muriatic acid stain granite.
Used for tiles walls and countertops grime will quickly cover your stone item and require a thorough cleaning.
If muriatic acid has stained black granite the color of the granite has been removed.
Limestone marble and granite are just a few of the natural stones available.
We all know that granite is durable and when properly sealed and cared for resistant to just about any stain.
This not a stain it bleached the granite.
Even granite can be marred if spills are left to sit or if surfaces are not adequately sealed.
This is a weak form of hydrochloric acid and can be applied to the stain.
Steps to remove the stain.
If commercial stone and granite cleaners or hard water and mineral removers are not removing the stains purchase muriatic acid.
It is quite possible that the damage is minor but the most reasonable method of restoring the surface is by polishing.
For fresh stains sprinkle a generous amount of baking soda onto the stain the baking soda will neutralize the acid.
Two paths could be taken first check granite and marble suppliers to see if they offer supplies or a service to polish.
Pressure washers can be used to clean granite headstones but use caution around the carved areas.
Muriatic acid is a heavy duty chemical that will clean away dirt soap scum and efflorescence from your natural stone and masonry items.
It can cause black scorched like stains on stainless steel or discoloration stains on grout and tile if not removed it can eat away at the grout.
Don t be alarmed if the area starts to bubble or foam.
The acid has reacted with the granite and etched the surface very slightly.
Since muriatic acid is toxic be sure to wear protective gloves and a protective mask so that you do not inhale the fumes.
Also avoid acids such as muriatic acid or phosphoric acid as they can damage the surface.
Muratic acid is a reactive chemical acid.
That is the effect of the acid and base mixing together and neutralizing.
But there s no such thing as a surface that is completely impervious to staining.
Muriatic acid can stain and discolor grout and tile.
There is no way to get it out other than to recolor it.