Perfluorooctanesulfonates – Beneficial, Yet Pervasive, Problematic

Health, Technology
Perflurooctanesulfonates or PFOs are simple compounds, not found in nature. They are derivatives of perfluorooctanesulfonic acid. Their chemical structure includes atoms of carbon, fluorine, sulfur, and oxygen. Various ways of writing the acid's formula are seen in the illustration, top to bottom – the simplest to the most complex, followed by a ball-and-stick model. Commercial Sales Search for the acid online, and you will find it. It can be purchased as the free acid. However, it is also sold in compound form, such as the tetramethylammonium or tetraethylammonium salts. Useful? There's no question these substances are useful. Consider this... The structure of this acid is not unlike the chemical structure of Teflon®. Teflon is slippery stuff. Teflon, however, is a solid. What if a similar, only soluble, substance could be…
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How to Glue Teflon

Teflon® is famous for its smooth surface. Essentially nothing sticks to Teflon. It has been bragged that the only thing that can stick to it may be a gecko. This is because of the special nature of a gecko’s grip. In fact, it appears a gecko can only stick to Teflon under special conditions. So the question is: How can we glue Teflon? I Need to Know How to Glue Teflon And yet, that was the task I was given at my place of employment. I was told the use of a special chemical pre-treatment could allow objects to be glued to the slippery stuff. Since I am a chemist, the reader can rest assured this piqued my interest immensely. What was the pre-treatment, and how did it work? The…
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