Читать книгу Concise Handbook of Fluorocarbon Gases - Sina Ebnesajjad - Страница 23

Fluorine is present in the air we breathe, the water we drink and the rocks beneath us, as well as in numerous synthetic polymers, pharmaceuticals, agrochemicals and other formulations. Fluorine in the atmosphere, oceans, biosphere and earth’s crust might be grouped together as the fluorosphere to understand the effects of human activities on the environment [1].

This chapter begins with a short discussion of sources of fluorinated chemicals. Most existing fluorochemicals are organic and virtually all of them are synthetic, that is manufactured. Fluorochemicals as a class of materials are fairly new; all of them have been produced since 1930’s. The rest of this chapter primarily covers fluorocarbon gases and liquids. A short explanation of commercial fluoropolymers rounds off the Chapter.