High purity graphite sets the standard for carbon – literally. As it is the most stable form of carbon known to man, it is used to set the benchmark for defining how carbon compounds are formed during the application of heat. Historically graphite has been confused with lead. Historic texts show that references to black lead or plumbago typically refer to what, today, would be called graphite. It was the brilliant chemist Carl Wilhelm Scheele who finally identified clearly that lead and graphite were two distinct materials and it was Abraham Gottlob Werner who finally gave the material the name by which it is known today.