The role of organic solvent radical cations in separations ligand degradation

Mezyk, Stephen P.; Mincher, Bruce J.; Dhiman, Surajdevprakash B.; Layne, Bobby; Wishart, James F.

doi:10.1007/s10967-015-4582-7

Title: The role of organic solvent radical cations in separations ligand degradation

Journal Article · Wed Nov 04 00:00:00 EST 2015 · Journal of Radioanalytical and Nuclear Chemistry

DOI:https://doi.org/10.1007/s10967-015-4582-7· OSTI ID:1329809

Mezyk, Stephen P. ^[1]; Mincher, Bruce J. ^[2]; Dhiman, Surajdevprakash B. ^[3]; Layne, Bobby ^[3]; Wishart, James F. ^[3]

California State Univ. (CalState), Long Beach, CA (United States)
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)

The dodecane radical cation reaction rate constant with CMPO was measured using ps electron pulse radiolysis/absorption spectroscopy as k = (1.30 ± 0.11) x 1010 M^-1 s^-1 in dodecane/0.10 M CH₂Cl₂ solution. No reactivity increase occurred when these solutions were pre-contacted with nitric acid, similar to the behavior observed for TODGA. To corroborate these kinetic data with steady-state radiolysis measurements, where acid pre contacted CMPO showed significantly less degradation, it is proposed that the dodecane radical cation always reacts directly with TODGA, but for CMPO the charge-transfer occurs with the CMPO•HNO₃ complex formed in the acid contacted solvent.

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Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC00112704

OSTI ID:: 1329809

Report Number(s):: BNL-112756-2016-JA; R&D Project: CO031; KC0304030

Journal Information:: Journal of Radioanalytical and Nuclear Chemistry, Vol. 307, Issue 3; ISSN 0236-5731

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 16 works

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References (18)

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Cited By (4)

Radiolytic and hydrolytic degradation of the hydrophilic diglycolamides Wilden, Andreas; Mincher, Bruce J.; Mezyk, Stephen P. Solvent Extraction and Ion Exchange, Vol. 36, Issue 4 https://doi.org/10.1080/07366299.2018.1495384	journal	June 2018
Radiolytic and hydrolytic degradation of the hydrophilic diglycolamides Wilden, Andreas; Mincher, Bruce J.; Mezyk, Stephen P. Taylor & Francis https://doi.org/10.6084/m9.figshare.6851141	text	January 2018
Radiolytic and hydrolytic degradation of the hydrophilic diglycolamides Wilden, Andreas; Mincher, Bruce J.; Mezyk, Stephen P. Taylor & Francis https://doi.org/10.6084/m9.figshare.6851141.v2	text	January 2018
Radiolytic and hydrolytic degradation of the hydrophilic diglycolamides Wilden, Andreas; Mincher, Bruce J.; Mezyk, Stephen P. Taylor & Francis https://doi.org/10.6084/m9.figshare.6851141.v1	text	January 2018

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Dodecane radical cation
ps pulse radiolysis
CMPO
TODGA
Acid contact

Title: The role of organic solvent radical cations in separations ligand degradation

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References (18)

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