Safety and science behind everyday disinfectants
Learn how early 20th‑century researchers tested coal‑tar disinfectants and compare their toxicity with common products. This government study clarifies what makes a substance poisonous in practical terms and what that means for real‑world use.
In this Hygienic Laboratory bulletin, Worth Hale describes a large, controlled program to measure how toxic coal‑tar disinfectants are, and how they stack up against other commercial disinfectants. The work focuses on phenol and its higher homologues, including cresols and phenoloids, and explains why some products advertised as “safe” still pose risks. It also covers how scientists define poison and how dose affects danger, using mice to gauge toxic effects across a range of concentrations.
- How toxicity is defined and measured for disinfectants
- Differences between phenol, cresols, and phenoloid compounds
- Methods for testing toxicity in animal models and interpreting results
- Practical insights about safe handling and public health implications
Ideal for readers of early public health science and historical toxicology, this edition helps explain why certain disinfectants require caution even when widely available.