formaldehyde is, incidentally, my absolute least favorite chemical to work with. Formailin (37% formaldehyde solution) is still used for tissue preservation an

formaldehyde is, incidentally, my absolute least favorite chemical to work with. Formailin (37% formaldehyde solution) is still used for tissue preservation and it absolutely reeks to high heaven. The stink clings to my clothes, too. A good respirator helps, but it can only do so much. Normally you have to have a few sulfoxide bonds in things to make them epically stinky, but formaldehyde finds a way to do without and still offend.