# 7.6.2.22.1. Chemeq

Syntax

  Burn Ignition [{of} SpeciesName] = Chemeq ()

Scope

  Aria Material

Summary

  Use the status of the chemeq block to determine when burn fronts become active. Chemeq is deactivated when either the temperature or rate of temperature criteria are met, which will then ignite a burn front. Burn front ignition controls when burn fronts become active, while initiation line commands refer to where the burn fronts will be initialized.

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –