The optical basicities in some halide compounds and in oxide - halide systems such as CaO - CaF2, CaO - CaCl2 systems have been measured using photoacoustic spectroscopy in order to examine an application of the optical basicity concept for oxide - halide systems. The optical basicities measured in this study were compared with the values of the theoretical optical basicity based on the concept of the average electron density (D). The optical basicities mesured were in agreement with the theoretical optical basicities in CaO - CaF2 and CaO - CaCl2 systems. On the other hand, two values of the optical basicity were obtained from the sample in CaO - NaCl system. One of them was considered to correspond to the optical basicity of CaO.
ISSN: 2576-1579
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