🦠microbiology review

Carbolic acid

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025

Definition

Carbolic acid, also known as phenol, is a toxic compound that was historically used as an antiseptic. It is significant in microbiology for its role in the development of aseptic techniques.

5 Must Know Facts For Your Next Test

  1. Carbolic acid was first used by Joseph Lister in the 1860s to sterilize surgical instruments and clean wounds, reducing post-operative infections.
  2. It acts by denaturing proteins and disrupting cell membranes, effectively killing bacteria and other pathogens.
  3. Despite its effectiveness, carbolic acid can cause burns and systemic toxicity if not handled properly.
  4. The use of carbolic acid paved the way for modern antiseptics and disinfectants in medical practices.
  5. In contemporary settings, carbolic acid has largely been replaced by safer and more effective antiseptics.
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