Why should the top cap be pressed immediately after the heavy sulfuric acid is poured?
The second is to prevent falling to the concentrated sulfuric acid tank, resulting in sulfuric acid splashing accident.
Concentrated sulfuric acid has a strong water absorption capacity, open storage, concentrated sulfuric acid will absorb moisture in the air, when the volume of sulfuric acid in the container increased, the concentration decreased. This phenomenon is called running acid.
