Dodecane


Dodecane is an oily liquid n-alkane hydrocarbon with the chemical formula C12H26.
It is used as a solvent, distillation chaser, and scintillator component. It is used as a diluent for tributyl phosphate in nuclear reprocessing plants.

Combustion reaction

The combustion reaction of dodecane is as follows:
One litre of fuel needs about 15 kg of air to burn, and generates 2.3 kg of CO2 upon complete combustion.

Jet fuel surrogate

In recent years, n-dodecane has garnered attention as a possible surrogate for kerosene-based fuels such as Jet-A, S-8, and other conventional aviation fuels. It is considered a second-generation fuel surrogate designed to emulate the laminar flame speed, largely supplanting n-decane, primarily due to its higher molecular mass and lower hydrogen-to-carbon ratio which better reflect the n-alkane content of jet fuels.