pyrophoric etymology

Etymology

The word "pyrophoric" is derived from Greek roots:

  • πῦρ (pyr): fire
  • -φορος (-phoros): carrying

Meaning

Pyrophoric means:

  • (of a substance or material) capable of spontaneously igniting in air at or below room temperature.
  • (of a reaction or process) producing heat or fire.

Origin

The term "pyrophoric" was coined in the 18th century by the German chemist Johann Friedrich Gmelin. He used it to describe certain chemical compounds that ignite spontaneously when exposed to air.

Examples

Examples of pyrophoric substances include:

  • Fine powders of metals such as iron, nickel, and aluminum
  • Some organometallic compounds
  • White phosphorus

pyrophoric relate terms

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