Origin of clusters. I. Correlation of low temperature fast atom bombardment mass spectra with phase diagram of NaCl-water solutions

• DOI: 10.1255/ejms.43
• Publication Date: 2007-12-12T12:29:46Z
• Authors: O. Boryak; I. Stepanov; M. Kosevich; V. Shelkovsky; V. Orlov; Yu. Blagoy
• Keywords: Sublimation; Anhydrous

Correlations between the structure of samples frozen solutions sodium chloride in water, produced at different parameters phase diagram this system, and clusters pattern corresponding low temperature fast atom bombardment mass spectra are established. Using a model independent sputtering ions from chemically surface domains, it was concluded that origin types phases heterogeneous was: (H2O)nH+—from ice; (NaCl)m•Na+—from anhydrous NaCl; (H2O)n•Na+, (H2O)n•(NaCl)m•Na+, crystalline hydrate NaCl•2H2O. During thawing two subsequent transitions with increasing were observed, these sublimation ice dehydration hydrate. The differences (H2O)n•Na+ crystals Na+ ion adsorbed on their surfaces discussed.