👉 Tetraboric is a term in chemistry used to describe the molecular structure of tetrafluoroethylene, or TFE. Tetraboric refers to the five-membered ring that is present in the molecule. It is formed by combining two different fluorine atoms with an oxygen atom. Tetraboric is often used as a symbol for TFE and can be found on labels and packaging of various products containing it, such as paints or plastics.