scholarly journals Selenium and sulphur reactions involved in manganese reduction from sulphate solutions

RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25542-25550
Author(s):  
Q. L. Reyes-Morales ◽  
V. E. Reyes-Cruz ◽  
A. Trujillo-Estrada ◽  
J. A. Cobos-Murcia ◽  
G. Urbano-Reyes ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Electrochemical Reduction ◽  
Ionic Species ◽  
Electrochemical Reactor ◽  
Manganese Reduction ◽  
Anionic Exchange ◽  
Manganese Deposition

Electrochemical reduction of ionic species during manganese deposition from sulphated aqueous solutions has been studied in an electrochemical reactor with two anionic exchange membranes.

Ionic species in aqueous solutions of hydrazinium fluorides

1980 ◽  
Vol 16 (6) ◽  
pp. 645
Author(s):  
P. Glavič ◽  
J. Slivnik ◽  
J. Zupan
Keyword(s):  
Aqueous Solutions ◽  
Ionic Species

Co-extraction of phosphoric and tetrachloroferric acids

1968 ◽  
Vol 46 (4) ◽  
pp. 662-663 ◽  
Author(s):  
Robert H. McCorkell ◽  
John W. Irvine Jr.
Keyword(s):  
Phosphoric Acid ◽  
Aqueous Solutions ◽  
Organic Solvents ◽  
Strong Acid ◽  
Ionic Species ◽  
The Other ◽  
Solvent Properties

The presence of an extracting strong acid greatly enhances the extraction of phosphoric acid from aqueous solutions into organic solvents, but no type of compound forms between the phosphoric acid and the other extracted species. Only the alteration of the solvent properties when an ionic species and water are added to it can account for the increase in [Formula: see text]

DIFFUSION IN MULTICOMPONENT AQUEOUS SYSTEMS

1966 ◽  
Vol 44 (4) ◽  
pp. 477-485 ◽  
Author(s):  
J. E. Lane ◽  
J. S. Kirkaldy
Keyword(s):  
Aqueous Solutions ◽  
Relative Viscosity ◽  
Ionic Species ◽  
Aqueous Systems ◽  
Vacancy Model ◽  
High Concentrations ◽  
Substitutional Alloys ◽  
Good Agreement

A vacancy model, originally developed for the description of diffusion in substitutional alloys, is modified for application to aqueous solutions, including those containing ionic species. The results obtained with this model are similar to those of two recently published methods for estimating L-coefficients in dilute multicomponent liquid systems.Agreement with experimental L-coefficients at relatively high concentrations can be improved for this model by assuming that the jump probability of a diffusing species is inversely proportional to the relative viscosity of the mixture. Good agreement is then found for some systems up to combined solute concentrations of 3 M.

Electrochemical Reduction Behavior of Alizarin Red S at HMDE in Aqueous Solutions

1997 ◽  
Vol 70 (10) ◽  
pp. 2389-2397 ◽  
Author(s):  
Refat Abdel-Hamid ◽  
Mostafa K. Rabia ◽  
Hussein M. El-Sagher
Keyword(s):  
Aqueous Solutions ◽  
Electrochemical Reduction ◽  
Alizarin Red S ◽  
Alizarin Red ◽  
Reduction Behavior

Complexation of Zr(IV) Precursors in Aqueous Solutions

1992 ◽  
Vol 271 ◽  
Author(s):  
J. Livage ◽  
M. Chatry ◽  
M. Henry ◽  
F. Taulelle
Keyword(s):  
Aqueous Solutions ◽  
Sol Gel ◽  
Chemical Species ◽  
Ionic Species ◽  
Whole Process ◽  
Charge Model ◽  
Partial Charge Model ◽  
Sol Gel Synthesis ◽  
Inorganic Precursors

ABSTRACTThe sol-gel synthesis of metal oxides can be performed via the hydroxylation and condensation of metal cations in aqueous solutions. The complexation of these ionic species by anions leads to the chemical modification of inorganic precursors at a molecular level. The whole process of hydrolysis and condensation can then be modified allowing a chemical control of the morphology, the structure and even the chemical composition of the resulting powder.The role of anions during the formation of condensed phases from inorganic precursors in aqueous solutions has to be taken into account. The complexing ability of these anions is described in the frame of the Partial Charge Model as a function of pH and the mean electronegativity of anionie and cationic chemical species. Experimental evidence for the complexation of zirconyl species in aqueous solutions will be given using multinuclear NMR of anions.

Sign in / Sign up

Export Citation Format

Share Document