1H NMR Analysis of the Aqueous-Alcoholic Mixtures, Prepared with Softened Water Using Na-Cationization

Kuzmin, Oleg; Topolnik, V; Fatiukha, A; Volkova, G. I.

doi:10.15550/asj.2014.07.009

Cited by 3 publications

(1 citation statement)

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“…The most important stages in the production of vodka (Oliinyk et al, 2016(Oliinyk et al, , 2014Kuzmin et al, , 2015 [1][2][3][4][5][6][7] are the creation of water-alcohol mixtures (Kuzmin et al, 2013 [8][9][10][11][12][13][14] and processing them with activated carbon (Oliinyk et al, 2014;Mukhin et al, 2003Mukhin et al, , 2004 [2,15,16]. The quality of the activated carbon depends on the quality of the finished product (Mukhin et al, 2003(Mukhin et al, , 2004Petrov et al, 2004Petrov et al, , 2005 [15][16][17][18].…”

Section: Analysis Of Recent Researchs and Publicationsmentioning

confidence: 99%

Correlation between the quality indicators of activated coal in vodka technology

Shendrik¹,

Levandovskyi²,

Kuts³

et al. 2019

UJFS

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Introduction. The purpose of the publication is to establish correlation relations between the quality indicators of active coal (AC) used in the distillery production in vodka technology. Materials and methods. AC of natural origin, which is used for distillery production. Standard methods of determination and quantitative characteristics of AC quality indicators. Mathematical-statistical methods of research are linear correlation analysis based on the Pearson correlation coefficient. Results and discussion. It was found that the correlation coefficient (r) between iodine adsorption activity (Ai.), which characterizes the amount and volume of micropore AC with diameter Dm<2 nm, including nanopor with diameter Dm<1 nm, and methylene blue (Am.b.), which depends on the mesopore volume with a diameter Dme=2…50 nm, is equal to 0.93. The total volume of the micro-and mesoporous space determines the total sorption capacity of AC relative to the organic impurities present in the water-alcohol mixtures. AC's sorption activity also depends on its fractional composition. The correlation (reverse dependence) between adsorption activity on acetic acid (Aa.a.) and the mass fraction of the sorbent residue on a screen with a cloth №10 (F№10) with a coefficient r=-0,94 was established. Reducing the mass fraction of the residual on a screen with a cloth from 97…98% to 62…64% leads to an increase in adsorption activity of AС by acetic acid to 117 ml versus 62 ml. This is directly due to the fact that the residual sorbent on the sieve № 10 has a large area of the surface of the microporous and mesoporous space due to the reduced size of the grains. The total volume of sorbents in water (Tp.v.) is directly proportional to the mass fraction of water soluble ash (Mw.a.) r=0.92 and the mass fraction of moisture (Mm.) at r=0.99. In order to release AC from water soluble ashes and increase the volume of pore space, it will be logical to wash the prepared AC with water and then dry it to the water content in the coal to 2%. It was established that the fractional composition, the mass of the residue on the sieve with canvas № 36 (F№36) is directly dependent on the mass fraction of ash (Ma.) (r=0.91) and the mass fraction of water soluble ash (Mw.a.) (r=0.91), which indirectly indicates the influence of inorganic components AC on its mechanical strength. It is assumed that in the largest fractions of AC with a mass of the residue on the sieve with canvas № 36 (F№36=2.1%) contains more ash in the macropore space (Ma=5.12%), including water soluble ash (Mw. a.=1.95%). Conclusions. As a result of the analysis of standard quality indicators AB and the study of their mutual dependencies using the mathematicalstatistical method using the Pearson correlation coefficients, it has been found that 92% (12 out of 13) indicators have strong internal relationships that are characterized by a "very high" correlation force with coefficients r=0.90-0.99.

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Section: Analysis Of Recent Researchs and Publicationsmentioning

confidence: 99%

Correlation between the quality indicators of activated coal in vodka technology

Shendrik¹,

Levandovskyi²,

Kuts³

et al. 2019

UJFS

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Eduction of Unsteady Equilibrium in Vodkas by Means of 1H NMR Spectroscopy

Kuzmin¹,

Topolnik²

2014

Adv. Sci.

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The aim of this publication is to identify unsteady equilibrium of hydroxyl proton of ethanol and water in various types of vodkas and flavored vodkas produced in Ukraine. The method used in the work is 1 H nuclear magnetic resonance (NMR) spectroscopy. This work has established fundamentally new aspects related to an internal mechanism of unsteady thermodynamic equilibrium in the finished product-vodka or flavored vodka. Unsteady equilibrium is characterized by the presence of two separate signals of H 2 O and EtOH in hydroxyl group.

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Eduction of Transitional Equilibrium in Vodkas by Means of 1H NMR Spectroscopy

Kuzmin¹,

Topolnik²

2014

Adv. Sci.

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The aim of this publication is to identify transitional equilibrium of hydroxyl proton of ethanol and water in various vodkas and flavored vodkas produced in Ukraine. The methods used in the work is 1 H nuclear magnetic resonance (NMR) spectroscopy. This work has established fundamentally new aspects related to an internal mechanism of transitional thermodynamic equilibrium in the finished product -vodka or flavored vodka. Transitional equilibrium is characterized by the presence of two separate signals H 2 O and EtOH. Also the transitional equilibrium assumes a presence of a subtle signal of EtOH. Presence of this signal characterizes transition from steady to unsteady equilibrium.

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1H NMR Analysis of the Aqueous-Alcoholic Mixtures, Prepared with Softened Water Using Na-Cationization

Cited by 3 publications

References 5 publications

Correlation between the quality indicators of activated coal in vodka technology

Correlation between the quality indicators of activated coal in vodka technology

Eduction of Unsteady Equilibrium in Vodkas by Means of 1H NMR Spectroscopy

Eduction of Transitional Equilibrium in Vodkas by Means of 1H NMR Spectroscopy

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