eng Ansari Education and Research Society Journal of Ultra Chemistry 0973-3450 2319-8036 June 2006 2 2 133 140 juc 818 article MATAR M. AL-ESAIMI 1 Umm Al Qura University, Faculty of Applied Science, Chemistry, Department, Makkah Al-Makarramah, P.O. Box - 4496 (SAUDI ARABIA) <p style="text-align: justify;">Mg/Al hydrotalcite was synthesized by the coprecipitation method using a mixture of NaOH / Na2CO3&nbsp;as precipitant. The compounds has been characterized by X-ray powder diffraction (XRD), thermogravimetric analysis (TG), differential scanning calorimetry (DSC) and Fourier&shy;transform infrared (FTIR). The condensation between different ketones with various aromatic aldehydes in sealed tube has been carried out in presences the of hydrotalcite under solvent free conditions without the occurrence of any self condensations in high yield.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</p> https://journalofchemistry.org/paper/818/ aromatic aldehydes hydrotalcite