Sulfuric Acid or Sulphuric Acid is a highly corrosive mineral acid and it is very dangerous to handle it at home. We strongly discourage the performance of this experiment at home. In this experiment we are going to see sulfuric acid reacting with eggshell, baking soda, and tissue paper. The sulfuric acid reaction in this experiment is an example for exothermic reaction as it generates heat.
DO NOT Try it yourself
In a Lab environment this experiment needs:
- Sulfuric acid
- Test tubes
- Tissue paper
- Baking soda
- Safety precautions
Step 1: Add small pieces of tissue papers (2 or 3 pieces) in a test tube.
Step 2: Add eggshells and baking soda (small quantity) in two other individual test tubes.
Step 3: Pour in some sulfuric acid (only to sink the material) in each of these test tubes.
Step 4: Observe the reaction and note the colour changes, and odor. Note the temperature produced by the reactions. Observe all the changes and record them.
We will notice that the sulfuric acid reaction with eggshell is a process of decomposition. The same effect can be found on sulfuric acid reaction with tissue paper. However, the decomposition of tissue paper is faster than that of the eggshell. When it comes to the reaction of sulfuric acid and baking soda, we will see a bubbling effect. The reaction is
H2SO4 + 2NaHCO3 –> Na2SO4 + 2CO2 + 2H2O
You must not try this at home, but you can try something else at home. try substituting sulfuric acid with vinegar and see the reaction of vinegar with eggshell, tissue paper, and baking soda. Some of these reactions can be very slow so do not loose your patience. If needed leave the test tube untouched with the materials in them for several hours and note your observations.