Mesogenic pitch

{
  "id": "MLC-T-CHM-013273",
  "term": "Mesogenic pitch",
  "field": "Chemistry",
  "definition": "An optically isotropic pitch, rich in aromatic hydrocarbons and low in quinoline-insoluble matter, that contains no anisotropic particles visible under the microscope but forms carbonaceous mesophase when heat treated above about 750 K. It is the precursor from which mesophase pitch is made. The mesophase it forms is a discotic nematic liquid crystal.",
  "subject": "Inorganic Chemistry",
  "see_also": [
    "carbonaceous mesophase",
    "hydrocarbons",
    "mesophase pitch",
    "pitch"
  ],
  "references": [
    "PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 496 (https://doi.org/10.1351/pac199567030473)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/mesogenic-pitch/"
}