Term: granular carbon
https://doi.org/10.1351/goldbook.G02682

Definition:
The term granular carbon is equivalent to coarse particulate carbon. This is a carbon material consisting of separate particles or grains which are monolithic, on the average larger than about 100 µm in diameter, but smaller than about 1 cm.

Note: Although limits of size cannot be exactly defined, @C01142@ grains obtained by grinding belong to coarse @P04433@ for grain sizes above ca. 100 µm, or to fine @P04433@ for grain sizes below ca. 100 µm. @C01172@ @G02684@ obtained by grinding of @N04088@ is a typical extra fine @P04433@. Industrial carbon materials (such as electrodes) are made with @F02363@ composed of coarse @P04433@ (@C01142@ grains) and fine @P04433@ (flour), and sometimes even @C01173@, @C00824@ or @S05768@). They are therefore polygranular materials.

Related Terms:
1) coke (http://doi.org/10.1351/goldbook.C01142).
2) particulate carbon (http://doi.org/10.1351/goldbook.P04433).
3) colloidal (http://doi.org/10.1351/goldbook.C01172).
4) graphite (http://doi.org/10.1351/goldbook.G02684).
5) natural graphite (http://doi.org/10.1351/goldbook.N04088).
6) fillers (http://doi.org/10.1351/goldbook.F02363).
7) colloidal carbon (http://doi.org/10.1351/goldbook.C01173).
8) carbon blacks (http://doi.org/10.1351/goldbook.C00824).
9) soot (http://doi.org/10.1351/goldbook.S05768).
10) carbon material (http://doi.org/10.1351/goldbook.C00841).

Source: PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 491 (https://doi.org/10.1351/pac199567030473)

Citation: 'granular carbon' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.G02682

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