踩到就身亡，氢氟酸为什么那么可怕？

Core Points - A tragic incident involving hydrofluoric acid resulted in the death of a 52-year-old woman in Hangzhou, Zhejiang, highlighting the dangers of this highly toxic chemical [1][4][14] Group 1: Incident Details - The victim, identified as Tu, accidentally stepped on a container of hydrofluoric acid while walking, leading to severe poisoning and subsequent death within days [4][14] - The incident occurred in a public area where local residents often engage in gardening, raising concerns about chemical safety in community spaces [5][14] Group 2: Chemical Properties and Risks - Hydrofluoric acid (HF) is a dangerous and highly toxic chemical, commonly used in industrial applications such as rust removal and semiconductor manufacturing [6][10] - Despite being classified as a weak acid, hydrofluoric acid poses a greater health risk than many strong acids, with potential for severe health consequences from any form of exposure [7][8] - The chemical's ability to penetrate skin and bind with calcium and magnesium ions in the body can lead to life-threatening conditions, including cardiac arrest [11][12] Group 3: Emergency Response and Management - Immediate and proper emergency treatment can mitigate the effects of hydrofluoric acid exposure, but timely intervention is often challenging outside of controlled environments [13][14] - The incident underscores significant gaps in the management of hazardous chemicals in the community, indicating a need for stricter regulations and safety measures [14]