Abstract
The presence of an excessive amount of iodine, especially radioactive iodine, is dangerous to the environment. Amine solutions are the most common and technically mature class of chemical sorption used for the capture of the pollutants. The iodine vapor diffusion and release capabilities of the aromatic amine solutions have been investigated. The iodine diffusion and release experiments were examined by UV-visible spectroscopy. Many electronic spectrophotometric studies have been reported in the coordination chemistry field on complexes. Generally, these complexes were obtained by using different electron donors with various organic or metallic electron acceptors in polar and non-polar solvents. The absorption spectra of the donor, acceptors, and the resulted complexes were carried out in methanol in the region of 200–600 nm. The correlation between the spectral characteristics of molecular complexes of iodine with various aromatic amines and the ionization potentials of the donor molecules is discussed. The concentrations of the diffused iodine and the formed complex were calculated using mathematical models and calibration curves. The values of the formation constant (k AD), molar extinction coefficient (ε AD), and absorption band energy of complexes were estimated. The ionization potential of the donor I D was calculated from the complex band energies. The kinetic of the above association and reverse reactions was studied, and some kinetic parameters have been estimated.
Acknowledgments
This paper is dedicated to the memory of the late Professor Ali Hassoun Al-Taiar.
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Supplementary Material
This article contains supplementary material (https://doi.org/10.1515/pac-2024-0205).
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Articles in the same Issue
- Frontmatter
- In this issue
- IUPAC Technical Reports
- Terms of Latin origin relating to sample characterization (IUPAC Technical Report)
- Glossary of terms used in biochar research (IUPAC Technical Report)
- Properties and units in the clinical laboratory sciences. Part XXVIII. NPU codes for characterizing subpopulations of the hematopoietic lineage, described from their clusters of differentiation molecules (IUPAC Technical Report)
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- Capabilities and drawbacks of mass spectrometry in the forensic field: analysis of real cases dealing with toxicology and explosives
- Mapping the distribution of bioactive compounds and aroma/flavour precursors in green coffee beans with an integrated mass spectrometry-based approach
- Fire fighters and mass spectrometry: from the world of combustion to the molecular ion
- Special Topic: IUPAC Distinguished Women in Chemistry and Chemical Engineering Awards 2023; Guest Editor: Mary J. Garson
- Method development for multielement determination of halogens and sulfur in teas
- Regular Review Article
- A brief history of risk assessment for agrochemicals
- Regular Research Articles
- Capture of volatile iodine by aromatic amines solutions
- Facile and green hydrothermal synthesis of MgAl/NiAl/ZnAl layered double hydroxide nanosheets: a physiochemical comparison
- Production of oil palm mesocarp fiber-based hydrogel using selected cross-linking acids