Castor Oil Derived Insulating Fluid Catalyzed with SnCl2/Zeolite YWidayat Widayat, John Philia, Istiqomah Istiqomah, Sriyono Sriyono, Kevin Gausultan Hadith Mangunkusumo and Aji Suryo AlamE3S Web Conf., 650 (2025) 01001DOI: https://doi.org/10.1051/e3sconf/202565001001