If acid falls on your marble floor, then it can be quite damaging. But how will you protect it? The only way you can do it is by neutralizing the acid - an activity called acid-base neutralization. All you have to do is spill some Lime Water or Calcium Hydroxide on the acid-affected area. You will notice that your marble floor will remain safe and no damage will be done to it. This process of neutralization can be demonstrated as an experiment, particularly by students who are looking for Science project ideas. But try to arrange the following before performing it.
- 2 Marble Tiles or chips
- 2 Glass Containers
- Concentrated Sulphuric Acid (50 ml)
- Calcium Hydroxide (50 ml)
- Plastic Gloves
- Face Mask
The second tile
Now pour Sulphuric acid onto the other marble tile. Make sure you do not let this reaction continue for long time to protect corrosion of the tile. Now pour Calcium Hydroxide on this tile and observe what happens.
The Neutralization in other container
It will be observed that the marble tile on which Calcium Hydroxide was added after pouring Sulphuric Acid remains unharmed. This is due to the neutralization reaction that converts acid into water and salt.
H2SO4 + Ca (OH) 2 ---------------------------CaSO4 + 2H2O