Abstract The study describes the mathematical calculation of pumpkin drying process. In order to check data obtained for different temperatures in experiment (45, 55 and 65 °C) choose most appropriate model, comparisons were made with models. For this purpose 5 experimental theoretical models used, which are widely used processes (Lewis, Henderson Pabis, two terms, Wang Singh, Midilli). Statist...

Synthesis, characterization, spectral and theoretical calculations of sodium tetrafluoroborate (III) (STFB) has been studied in this research. Sodium tetrafluoroborate (III) was synthesized by a sonochemical method and characterized by IR, UV/VIS, 11B-NMR and Mass spectrometer techniques. The nano compound was characterized by scanning electron microscopy (SEM), X-ray powder diffract...