🦠microbiology review

Thallium acetate

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

Definition

Thallium acetate is a chemical compound used in microbiology for its selective toxicity towards certain bacterial species. It's often employed to isolate and study specific pathogens in respiratory tract infections.

5 Must Know Facts For Your Next Test

  1. Thallium acetate inhibits the growth of non-target bacteria, allowing for easier identification of pathogens.
  2. It is highly toxic and should be handled with extreme care in a laboratory setting.
  3. Thallium acetate can be used to differentiate between gram-positive and gram-negative bacteria due to its selective action.
  4. In respiratory tract infection studies, it helps isolate pathogenic bacteria like Streptococcus pneumoniae from throat swabs.
  5. Due to its toxicity, alternative less hazardous substances are sometimes preferred for similar applications.

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