“Pulling” Nanoparticles into Water:  Phase Transfer of Oleic Acid Stabilized Monodisperse Nanoparticles into Aqueous Solutions of α-Cyclodextrin

The kinetics of oxidation of alkenes by thallic sulphate in aqueous solutions, involving the two reaction steps-the hydroxythallation and the dethallation - was studied, and the effect of salts on the kinetics was examined; this made it possible to specify more precisely the reaction mechanism and to suggest a qualitative model of the reaction coordinate. It was found that in homogeneous as well as in heterogeneous reaction conditions, the reaction can be accelerated appreciably by adding tetraalkylammonium salts. These salts not only operate as catalysts of the phase transfer, but also exert a significant kinetic effect, which can be explained with a simplification in terms of a stabilization of the transition state of the reaction.

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Salts of Sulfated Oleic Acid Amides as Acid Corrosion Inhibitors

Chemistry and Technology of Fuels and Oils ◽

10.32935/0023-1169-2021-625-3-36-38 ◽

2021 ◽

Vol 625 (3) ◽

pp. 36-38

Author(s):

E. K. Aminova ◽

◽

V. V. Fomina ◽

Keyword(s):

Oleic Acid ◽

Sulfuric Acid ◽

Hydrochloric Acid ◽

Aqueous Solutions ◽

Carboxylic Acids ◽

Ammonium Salt ◽

Dilute Hydrochloric Acid ◽

Corrosion Inhibitors ◽

Acid Corrosion ◽

Protective Ability

This work is a continuation in a series of studies on the preparation of acid corrosion inhibitors based on carboxylic acids. A method of synthesis of acid corrosion inhibitors based on oleic acid amides has been developed. Several syntheses have been carried out to increase its inhibitory properties. The substances were obtained in several stages. At the first stage, amino alcohols were added to the ОA, then the resulting compounds were sulfonated with sulfuric acid. To expand the field of various inhibitors, reactions with bases are produced. As a result, salts of sulfated amides of oleic acid synthesized with amino nitrates, sulfuric acid and aqueous solutions of bases were formed. To establish the effectiveness of the compounds obtained, the protective ability in dilute hydrochloric acid was evaluated. It is established that some of the obtained substances exhibit the corresponding properties of inhibitors. In this case, the most effective is the ammonium salt of sulfated diethanolamide oleic acid.

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Extraction of copper ions from aqueous solutions with oleic acid as green solvent

Journal of Physics Conference Series ◽

10.1088/1742-6596/1349/1/012128 ◽

2019 ◽

Vol 1349 ◽

pp. 012128 ◽

Cited By ~ 1

Author(s):

S F A Halim ◽

S H Chang ◽

S K N Ahmad

Keyword(s):

Oleic Acid ◽

Aqueous Solutions ◽

Copper Ions ◽

Green Solvent

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Non-aqueous to aqueous phase transfer of oleic acid coated iron oxide nanoparticles for hyperthermia application

RSC Advances ◽

10.1039/c3ra44644a ◽

2014 ◽

Vol 4 (9) ◽

pp. 4515-4522 ◽

Cited By ~ 50

Author(s):

R. M. Patil ◽

P. B. Shete ◽

N. D. Thorat ◽

S. V. Otari ◽

K. C. Barick ◽

...

Keyword(s):

Oleic Acid ◽

Iron Oxide ◽

Iron Oxide Nanoparticles ◽

Aqueous Phase ◽

Phase Transfer ◽

Oxide Nanoparticles

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Mechanism of phase transfer of uranyl ions: a vibrational sum frequency generation spectroscopy study on solvent extraction in nuclear reprocessing

Physical Chemistry Chemical Physics ◽

10.1039/c8cp04558e ◽

2018 ◽

Vol 20 (47) ◽

pp. 29588-29590 ◽

Cited By ~ 4

Author(s):

Ryoji Kusaka ◽

Masayuki Watanabe

Keyword(s):

Solvent Extraction ◽

Aqueous Solutions ◽

Phase Transfer ◽

Sum Frequency Generation ◽

Uranyl Ions ◽

Spectroscopy Study ◽

Extraction Mechanism ◽

Sum Frequency ◽

Sum Frequency Generation Spectroscopy ◽

Nuclear Reprocessing

VSFG study on interfaces of TBP/uranyl aqueous solutions shows that uranyl ion does not form complexes with TBP at the interface, and proposes a new extraction mechanism.

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