KINETIKA ADSORPSI ION SIANIDA (CN-) OLEH HIBRIDA AMINO SILIKA GEL TERIMPREGNASI Fe(III) (KINETICS ADSORPTION OF CYANIDE ION (CN-) BY AMINO HYBRID SILICA GEL IMPREGNATED Fe(III)) - Sari, Natalia Puspita; Department of Chemistry, Faculty of Mathematics and Sciences State University of Surabaya Jl. Ketintang Surabaya (60231), Telp. 031-8298761 (UNESA Journal of Chemistry, 2013)