What is the primary hazard associated with isocyanates?

The primary hazard associated with isocyanates is respiratory problems. Isocyanates are highly reactive chemicals commonly used in the production of polyurethane products, and they can cause significant health issues, particularly when inhaled. When exposed to isocyanate vapors or aerosols, individuals can experience irritation of the respiratory tract, leading to sensitization, asthma, and other long-term respiratory problems.

While isocyanates can indeed pose a risk of skin irritation and, in some cases, can be associated with cancer with prolonged exposure, the immediate and most severe risks are related to respiratory health. The inhalation of isocyanates can lead to serious acute health effects, including coughing, wheezing, and shortness of breath, which is why respiratory protection is critical when working with materials containing isocyanates.

Flammability is also a concern, but it is not the primary hazard compared to the significant respiratory effects. Understanding the specific hazards associated with isocyanates is crucial for ensuring the health and safety of individuals working with these materials.