Thermal analysis of a calcium fructoborate sample

A commercial calcium fructoborate dietary supplements with potential use in chemotherapy of diseases, was investigated by thermal analysis, XRD, FTIR, Raman spectroscopy and ICP. Measurements performed in air show that a commercial sample seems basically to be a hydrated calcium fructoborate. We have compared a commercial sample of calcium fructoborate with a sample produced in the laboratory and concluded that both lose the bonded water up to 150 °C and then degrades in six stages, more exactly one endothermic and five exothermic. By ICP and thermogravimetry (TG), the overall formula Ca[(C6H10O6)2B]2·4H2O is suggested. XRD indicates a highly amorphous nature of the sample.