The heterogeneous oxidation of olefins to vicinal diols was investigated using an Os-Zn-Al hydrotalcite-like catalyst (HTlc). The Os-Zn-Al HTlc was synthesised by the co-precipitation method and characterised fully using XRD. FT-IR. TEM. https://www.diegojavierfares.com/mega-pick-SA439-EF75-5-x-7-Embroidery-Machine-Hoop-mega-pick/