Electrical arc

{
  "id": "MLC-T-CHM-003642",
  "term": "Electrical arc",
  "field": "Chemistry",
  "definition": "A continuous, high-current electrical discharge that occurs between two electrodes, creating a bright, hot plasma. This discharge is characterized by a relatively low voltage drop across the arc column and high current density. It is frequently employed in analytical chemistry for atomic emission spectroscopy, providing a powerful excitation source for samples.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "cathode",
    "current density"
  ],
  "references": [
    "Orange Book, 2nd ed., p. 123 (https://media.iupac.org/publications/analytical_compendium/)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/electrical-arc/"
}