PRIMARY ASTROPHYSICAL DUST FORMATION - LABORATORY DESIDERATA

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