ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Surface-adsorption of SiO₂ in melts of the system CaO-FeO-Fe₂O₃-SiO₂

V. Daněk, T. Ličko, and Z. Pánek

Institute of Inorganic Chemistry, Centre for Chemical Research, Slovak Academy of Sciences, CS-842 36 Bratislava

Abstract: Surface tension of the CaO-FeO-Fe₂0₃-Si0₂ melts decreases with the increasing content of Si0₂ . The change of Fe₂0₃ concentration in the melts with the mole ratio x(CaO)/x(Si0₂ )=1 has no influence on the surface tension value. The surface adsorption of SiO₂ z in the investigated melts increases with the increasing activity of Si0 2 . The positive influence of cations on surface adsorption of Si0₂ increases in the order Fe³⁺, Fe²⁺, Ca²⁺ , which is due to the electropositivity of cation and its coordination in the melt.

Full paper in Portable Document Format: 394a459.pdf

Chemical Papers 39 (4) 459–465 (1985)