Heated acid reacts at a faster rate and aids in removal of acid-retarding materials such as oil, asphaltene and paraffins from the formation to give a better acid-to-formation contact. Some other benefits of heating acid are: Helps prevent precipitation of organic materials from oils that have been cooled by acids.
Why do we warm acid?
Heating up chemicals adds more energy to the system, allowing molecules to colide with more force increasing the probably of a reaction taking place.
What happens to acid when heated?
When heated, the pure 100% acid loses sulfur trioxide gas, SO3, until a constant-boiling solution, or azeotrope, containing about 98.5% H2SO4 is formed at 337°C. ... When hot it is an oxidizing agent, the sulfur in it being reduced; sulfur dioxide gas may be released.
