https://doi.org/10.1351/goldbook.G02682
The term granular carbon is equivalent to coarse in diameter, but smaller than about .
particulate carbon
. This is a carbon material
consisting of separate particles or grains which are monolithic, on the average larger than about Note:
Although limits of size cannot be exactly defined, , or to fine .
Although limits of size cannot be exactly defined,
coke
grains obtained by grinding belong to coarse particulate carbon
for grain sizes above ca. particulate carbon
for grain sizes below ca. Colloidal
graphite
obtained by grinding of natural graphite
is a typical extra fine particulate carbon
. Industrial carbon materials (such as electrodes) are made with fillers
composed of coarse particulate carbon
(coke
grains) and fine particulate carbon
(flour), and sometimes even colloidal carbon
, carbon blacks
or soot
). They are therefore polygranular materials.