In the sol-gel synthesis of dicalcium silicate (Ca₂SiO₄ – C₂S) the calcium nitrate tetrahydrate (Ca(NO₃)₂·4H₂O) and trietoxysilane (C₆H₁₆O₃Si - TEOS) were used as precursors. The C₂S was obtained at 800-1100°C.

Thermal analysis methods (DTA/TG), X-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDX) were used to investigate the formation of dicalcium silicate.

The in-vitro behavior was also investigated by soaking of the dicalcium silicate powder in simulated body fluid (SBF) for 7 days. Our results indicated that dicalcium silicate formed in SBF hydrosilicates as principal mineralogical phases and bound a small proportion of the phosphor from liquid as phosphate phases.