Thermodynamic Models for the (HClO4 + NaClO4){aq} and (HBr + NaBr){aq} Systems at 298.15 K and 0.1 MPa

CS Oakes, AL Ward, N Chugunov - Journal of Chemical & …, 2023 - ACS Publications
Current Pitzer activity coefficient models for the (H+ Na+ ClO4){aq} and (H+ Na+ Br){aq}
systems are limited to ionic strengths< 7 mol· kg–1. To accurately describe activity …

[HTML][HTML] Thermodynamic description of U (IV) solubility and hydrolysis in chloride systems: Pitzer activity model for the system U4+–Na+–Mg2+–Ca2+–H+–Cl––OH …

Y Yan, N Çevirim-Papaioannou, X Gaona… - Applied …, 2024 - Elsevier
This study presents updated chemical, thermodynamic, and activity models for the system U
4+–Na+–Mg 2+–Ca 2+–H+–Cl––OH––H 2 O (l) derived using the Pitzer formalism and a …

Spectroscopic evaluation of UVI–cement mineral interactions: ettringite and hydrotalcite

MC Stennett, B Walkley, SE O'Sullivan… - Synchrotron …, 2022 - journals.iucr.org
Portland cement based grouts used for radioactive waste immobilization contain high
replacement levels of supplementary cementitious materials, including blast-furnace slag …

Impact of selected cement additives and model compounds on the solubility of Nd(III), Th(IV) and U(VI): screening experiments in alkaline NaCl, MgCl2 and CaCl2 …

N Adam, K Hinz, X Gaona, PJ Panak… - Radiochimica Acta, 2021 - degruyter.com
The solubility of Nd (III), Th (IV) and U (VI) was studied from undersaturation conditions in the
presence of selected organic cement additives and model compounds: adipic acid, methyl …

Extended Specific Ion Theory (ESIT): Theoretical development and application to Harned's rule

A De Visscher - Journal of Solution Chemistry, 2022 - Springer
The specific ion theory (SIT) is a convenient ion activity coefficient model that is often used in
solubility and solution equilibrium studies. However, its accuracy is limited. The SIT model …

Equilibrium Data and Correlation with Redefined NRTL Equation of Aqueous Two-phase Systems Based on 1, 4-Bis-(2-hydroxyethyl)-piperazine and Na2SO4

T Wang, H Xu, Z Zheng, P Chen - Solvent Extraction Research and …, 2023 - jstage.jst.go.jp
Aqueous two-phase system (ATPS) is considered a new method to remove heat stable salts
(HSS) from flue gas desulfurizer 1, 4-bis-(2-hydroxyethyl)-piperazine (BHEP). In this work …

[PDF][PDF] Spectroscopic evaluation of Uvi–cement mineral interactions: ettringite and hydrotalcite

LM Mottram, DJ Bailey, JL Provis, NC Hyatta… - academia.edu
Portland cement based grouts used for radioactive waste immobilization contain high
replacement levels of supplementary cementitious materials, including blast-furnace slag …