The difference between colloidal graphite and flake graphite

2021-08-10

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Flake graphite refers to the raw ore of natural graphite. After being treated with nitric acid and then dried, it becomes expanded graphite. Nano-graphite powder is a finely divided form obtained by purifying flake graphite. A colloidal system consisting of graphite particles with diameters ranging from 1 nm to 100 nm is called a colloid. Colloidal graphite belongs to the category of nanomaterials. Graphite is an allotrope of elemental carbon. Each carbon atom is surrounded by three other carbon atoms arranged in a honeycomb-like hexagonal pattern, which are covalently bonded to form covalent molecules. Since each carbon atom contributes one electron, graphite is a conductor. Applications of graphite include pencil leads and lubricants. Carbon is a nonmetallic element. The Latin word "Carbonium" means "coal or charcoal." The Chinese character "炭" is composed of the characters "炭" and "石."

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