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Li S, Yuan J, Li F, et al. Local structures and the dissolving behavior of aqueous ammonia and its KCl and NH₄Cl solutions: A Raman spectroscopy and X-ray scattering study. Spectrochim Acta A Mol Biomol Spectrosc. 2016;162:27-35doi: 10.1016/j.saa.2016.02.025.
Li, S., Yuan, J., Li, F., & Liu, Z. (2016). Local structures and the dissolving behavior of aqueous ammonia and its KCl and NH₄Cl solutions: A Raman spectroscopy and X-ray scattering study. Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 16227-35. https://doi.org/10.1016/j.saa.2016.02.025
Li, Shenyu, et al. "Local structures and the dissolving behavior of aqueous ammonia and its KCl and NH₄Cl solutions: A Raman spectroscopy and X-ray scattering study." Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy vol. 162 (2016): 27-35. doi: https://doi.org/10.1016/j.saa.2016.02.025
Li S, Yuan J, Li F, Liu Z. Local structures and the dissolving behavior of aqueous ammonia and its KCl and NH₄Cl solutions: A Raman spectroscopy and X-ray scattering study. Spectrochim Acta A Mol Biomol Spectrosc. 2016 Jun 05;162:27-35. doi: 10.1016/j.saa.2016.02.025. Epub 2016 Mar 02. PMID: 26974475.
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Spectrochim Acta A Mol Biomol Spectrosc. 2016 Jun 05;162:27-35. doi: 10.1016/j.saa.2016.02.025. Epub 2016 Mar 02.

Local structures and the dissolving behavior of aqueous ammonia and its KCl and NH₄Cl solutions: A Raman spectroscopy and X-ray scattering study.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

Shenyu Li, Junsheng Yuan, Fei Li, Ziyu Liu

Affiliations

  1. School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China; School of Marine Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
  2. School of Marine Science and Engineering, Hebei University of Technology, Tianjin 300130, China. Electronic address: [email protected].
  3. School of Marine Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
  4. School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China.

PMID: 26974475 DOI: 10.1016/j.saa.2016.02.025

Abstract

The aqueous ammonia (5%-15%) and its KCl and NH4Cl solutions have been studied by Raman spectroscopy and X-ray scattering. The microscopic structures in these solutions were proposed. The addition of KCl reinforced the hydrogen bond between NH3 and H2O. On contrary, NH4Cl destroyed this interaction by forming hydrogen bond NH4(+)-NH3. This study gave an interpretation of the different dissolving behavior of KCl and NH4Cl in aqueous ammonia, which may have important implications in the separation of potassium and ammonium salt during the industrial production.

Copyright © 2016 Elsevier B.V. All rights reserved.

Keywords: Ammonium chloride; Aqueous ammonia; Potassium chloride; Raman spectroscopy; Solution structure; X-ray diffraction

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