Trump appointees obstructed investigation of Sterigenics, cancer-causing emissions, EPA says

[NNadir]

5. My experience with it...

...was entirely on a lecture bottle scale in the hood. I used it for a few reactions that ultimately went nowhere.

On the other hand, I have spent time in plants where metric ton quantities of phosgene were processed.

I spent many years working with phosgene, but the scariest substance I know well from direct experience is HF.

While I strongly support regulation in most cases, I have to say that I've seen regulations involved in handling HF that increased, rather than decreased the associated hazards. Regulations that are divorced from science, and they do exist, are a real problem.

Actually, even as I have a healthy respect for the hazards associated with HF, I actually believe that some processes involving its use might save humanity from itself.