Primary astrophysical dust formation: laboratory desiderata

The theoretical treatment of primary cosmic dust formation suggests specific laboratory experiments concerning all aspects of the molecule-solid transition along the evolution from molecules via clusters up to macroscopic grains. Based upon the theoretical description of chemistry and dust formation processes, we discuss the specific laboratory desiderata on input data like reaction coefficients, Gibbs energies of formation and sticking efficiencies for atoms and molecules involved in primary astrophysical dust formation.