colloidal carbon

https://doi.org/10.1351/goldbook.C01173
A @P04433@ with particle sizes below ca.\(1000\ \text{nm}\) in at least one dimension.
Note:
@C01172@ carbon exists in several morphologically distinct forms.
Source:
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 486 [Terms] [Paper]