A. Awin Labib., A. El-Rais Mahmoud., M. Abo Salem Tasniem., K. Almhidwi Salwa., Alnaas Maryam.M., Hadoud Ramadan.A., F. Alzarzah Salah., Removal of Neutral Red from Aqueous solutions usingSr2CaBO5.5 (B= Nb+5& Ta+5), Journal of New Developments in Chemistry, Volume 3, Issue 3, 2022, Pages 32-39, ISSN 2377-2549, https://doi.org/10.14302/issn.2377-2549.jndc-21-3936. (https://openaccesspub.orgjndc/article/1758) Keywords: Removal; Neutral Red; Perovskite oxide; B- site Cation.