Associate Safety Professional Practice Exam

What type of glove materials are best for handling containers contaminated with hydrochloric acid?

1. Cotton or leather

2. Butyl rubber or neoprene

3. Nitrile or vinyl

4. Latex or polyester

The correct answer is: Butyl rubber or neoprene

Butyl rubber and neoprene are considered optimal materials for handling containers contaminated with hydrochloric acid due to their chemical resistance properties. Hydrochloric acid is a strong, corrosive acid, and when selecting protective gloves, it is critical to choose materials that prevent permeation, degradation, and penetration by the chemical. Butyl rubber is known for its excellent resistance to a wide range of concentrated acids, including hydrochloric acid. It provides a great barrier against both liquid splashes and vapors, making it suitable for handling hazardous materials. Neoprene is also highly resistant to many chemicals, including acids, bases, and solvents. This synthetic rubber not only offers decent abrasion resistance but also maintains flexibility and comfort, which are essential when performing tasks that require dexterity. The other choices do not offer sufficient protection against hydrochloric acid. Cotton and leather are not suitable as they absorb moisture and can degrade in the presence of acids. Nitrile and vinyl are better suited for oils and solvents but may not provide adequate protection against strong acids. Latex and polyester are also inadequate for handling corrosive substances, as they can deteriorate upon exposure to acids. Thus, butyl rubber and neoprene are the clear choices for safety in this scenario.