American Chemical Society (ACS) Laboratory Safety Test 2025 – 400 Free Practice Questions to Pass the Exam

Exposure to dilute aqueous hydrofluoric acid can lead to delayed and excruciating pain, which is a significant indicator of its effects on the body. Hydrofluoric acid, even in dilute solutions, can penetrate the skin and tissues, causing damage that may not be immediately apparent. The pain associated with this exposure can take time to manifest, often intensifying as the acid continues to damage the underlying tissues and nerves.

This delayed reaction can lead individuals to underestimate the severity of the exposure initially, which is why understanding this symptom is critical for safety and prompt treatment. The painful effects can become quite severe, requiring immediate medical attention to prevent long-term injury or complications.

In contrast, immediate skin burns are typically associated with strong acids and bases that cause immediate damage upon contact. Color change in the skin and nausea and vomiting are not common indicators specifically tied to dilute hydrofluoric acid exposure, making delayed pain the most relevant symptom to look for in such situations.