F. sanguinea uses formic acid as well as substances in the Dufour's gland as chemical defence.

The substances in the Durfour's gland contain hydrocarbons such as hendecane, as well as acetates, decylacetate, and dodecylacetate.
Formica sanguinea uses the formic acid and Durfour's gland substances in conjunction with each other.
The hydrocarbons in Durfour’s substance serve as a wetting before the formic acid is released.
Without these wetting agents, formic acid is relatively harmless to other ants.
These substances dissolve the fat compounds of the epicuticle as well as enter the tracheal system to kill the opponent.
F. sanguinea uses formic acid as well as substances in the Dufour's gland as chemical defence.
The substances in the Durfour's gland contain hydrocarbons such as hendecane, as well as acetates, decylacetate, and dodecylacetate.Formica sanguinea uses the formic acid and Durfour's gland substances in conjunction with each other. The hydrocarbons in Durfour’s substance serve as a wetting before the formic acid is released. Without these wetting agents, formic acid is relatively harmless to other ants. These substances dissolve the fat compounds of the epicuticle as well as enter the tracheal system to kill the opponent.
Formica sanguinea