Montana Cosmetology Licensure Practice Exam

Which chemical is commonly used as a disinfectant in salons?

1. Vinegar

2. Bleach

3. Hydrogen peroxide

4. Isopropyl alcohol

The correct answer is: Isopropyl alcohol

Isopropyl alcohol is commonly used as a disinfectant in salons due to its effectiveness in killing a wide range of bacteria, viruses, and fungi. It is suitable for sanitizing tools and surfaces in a salon environment, where maintaining hygiene is crucial. Isopropyl alcohol typically has a concentration of 70% or higher, which is optimal for disinfection, as it penetrates the cell walls of microorganisms, leading to their destruction. While other substances listed can also serve as disinfectants, their effectiveness or suitability may vary. Vinegar is often seen as a natural cleaner but is not as effective against a broad spectrum of pathogens compared to isopropyl alcohol. Bleach is powerful but can be harsh on surfaces and tools, and it may require additional handling precautions. Hydrogen peroxide is effective but may not be as tangibly practical or widely used in salon settings. Thus, isopropyl alcohol stands out for its ease of use, safety, and efficiency in the salon context.