Self-organization and properties of dilute aqueous solutions of cetyltrimethylammonium bromide in a range of physiologically important temperatures

Perturbed very dilute aqueous solutions are investigated by analyzing their electric conductivity (χ). Foci include titrations and quasi-periodic oscillations of χ spanning several months. The χ data reflect persistent dissipative supramolecular self-organization. This paper's successful consistent explanations of the χ measurements corroborate earlier quantum field theoretical predictions. For example: (1) Permanent polarization results from quantum electro-dynamical interactions mediated auto-ordering of water molecules and molecular aggregates which have electric dipole moments. (2) The aggregates are created by exciting very dilute aqueous solutions, generating long lasting (cold) vortices in crystalline-like-structured super-fluidic domains. These domains are only present when the concentration (C) is lower than a solute dependent transitions concentration (C trans ). Typically, C trans is of the order of 10-4 M or below.

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GEL FORMATION IN AQUEOUS SOLUTIONS OF L-CYSTEINE AND SILVER NITRITE

Вестник Тверского государственного университета. Серия: Химия ◽

10.26456/vtchem2020.4.5 ◽

2020 ◽

pp. 45-53

Author(s):

Татьяна Викторовна Потапенкова ◽

Светлана Дмитриевна Хижняк ◽

Дмитрий Викторович Вишневецкий ◽

Павел Михайлович Пахомов

Keyword(s):

Silver Nanoparticles ◽

Amino Acid ◽

Aqueous Solutions ◽

Uv Spectroscopy ◽

Self Organization ◽

Gel Formation ◽

Wide Range ◽

Dilute Aqueous Solutions

В работе исследованы процессы гелеобразования в разбавленных водных растворах на основе простейшей аминокислоты L-цистеина и нитрита серебра (AgNO). С помощью метода УФ спектроскопии в широком диапазоне концентраций L-цистеина и AgNO в растворе от 0,001 до 0,05 М и различном соотношении L-цистеин/AgNO от 1,0/0,8 до 1,0/1,6. Изучены процессы самоорганизации, приводящие к образованию гидрогеля. Установлено, что для растворов с концентрацией исходных компонентов 0,05 М образуются устойчивые гидрогели, содержащие наночастицы серебра. The work investigated the processes of gelation in dilute aqueous solutions based on the simplest amino acid L-cysteine and silver nitrite (AgNO). The processes were studied using UV spectroscopy in a wide range of concentrations of L-cysteine and AgNO in solution from 0.001 to 0.05 M and various ratios of L-cysteine / AgNO from 1.0 / 0.8 to 1.0 / 1.6. Self-organization leading to the formation of a hydrogel. It was found that stable hydrogels containing silver nanoparticles are formed for solutions with a concentration of initial components of 0.05 M.

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The reactions of oligoalcohols with arsenic, arsenous, boric and germanic acids

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19802645 ◽

1980 ◽

Vol 45 (10) ◽

pp. 2645-2655 ◽

Cited By ~ 9

Author(s):

Antonín Mikan ◽

Miloš Bartušek

Keyword(s):

Aqueous Solutions ◽

Equilibrium Constants ◽

Dilute Aqueous Solutions

The reactions of sorbitol, mannitol, adonitol, dulcitol, glucose and glycerol with H3AsO4, H3AsO3, H3BO3 and GeO2 acids in dilute aqueous solutions were studied by potentiometric neutralization titrations. The formation of the following chelates was demonstrated: As(V)L3-, As(III)L(OH)2-, HAs(III)L(OH)2, BL2-, GeL2(OH)- and GeL32- and the equilibrium constants for their formation were found. Conditions for formation of these chelates of organic oligohydroxy compounds are discussed.

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Study of potential oscillations during reaction of an aluminium single crystal with an aqueous KOH solution

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19900345 ◽

1990 ◽

Vol 55 (2) ◽

pp. 345-353 ◽

Cited By ~ 4

Author(s):

Ivan Halaša ◽

Milica Miadoková

Keyword(s):

Aqueous Solutions ◽

Single Crystal ◽

Single Crystals ◽

Periodic Potential ◽

Optimum Conditions ◽

Potential Oscillations ◽

Dilute Aqueous Solutions ◽

Experimental Findings ◽

Kinetics Of

The authors investigated periodic potential changes measured on oriented sections of Al single crystals during spontaneous dissolution in dilute aqueous solutions of KOH, with the aim to find optimum conditions for the formation of potential oscillations. It was found that this phenomenon is related with the kinetics of the reaction investigated, whose rate also changed periodically. The mechanism of the oscillations is discussed in view of the experimental findings.

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