fig6
From: High-silica KFI zeolite: highly efficient synthesis and catalysis in methanol amination reaction
Figure 6. UV-Vis adsorption spectra of (Na+)CCH, (Cs+)CCH, NH3·H2O and 18-crown-6 (aq) mixture, and 18-crown-6 aqueous solution (5.7 mol·L-1), and the inserted photographs for the mixtures of 18-crown-6 (5.7 mol·L-1) aqueous solutions with NaOH, CsOH, and
