Titrimetric Estimation and Phenolphthalein Indicator in Distribution of Benzoic Acid into Water and Benzene-Buffer Solutions| Chapter 7 | Progress in Chemical Science Research Vol. 4

 In the chapter, we described the distribution and solubility of the solute benzoic acid in water and various pH benzene-buffer solutions, which were both tested using the titration method. The partitioning of these acids into hydrophilic solvent (water) and hydrophobic solvent (benzene) layers was studied using the shake-flask acid-base titration method over a 24-hour period at 25°C (room temperature). A phenolphthalein indicator has been employed in titrimetric assessment of the solubility of benzoic acid (solute) in aqueous solvent and in various pH buffer solutions, such as acidic (4.0), neutral (7.0), and basic (9.0). This experiment uses phenolphthalein indicator to titrate several pH benzene-buffer solutions (4.0, 7.0, and 9.0) against 0.01, 0.05, and 0.1N NaOH solutions, with the end point presenting a pink colour for each reading. The concentration of benzoic acid in the water and benzene layers is calculated using the normality determination equation and the distribution coefficient of that acid from the Nernst distribution law equation.

Author(s) Details:

Shiv Prakash Mishra,
Faculty of Science (Chemistry), Dr. Rammanohar Lohia Avadh University, Ayodhya-224001, (UP), India.

Please see the link here: https://stm.bookpi.org/PCSR-V4/article/view/8186

Effect of pH on Benzoic Acid Solubilization and Its Partition in Water-Benzene Solvents | Chapter 9 | New Innovations in Chemistry and Biochemistry Vol. 3

 The solubility of a substance is determined by the solute-solvent interaction, pH, temperature, and ionic dissociation, among other factors, where the solute is partitioned between two immiscible liquid solvents. The solubility of benzoic acid (solute) as well as its partitioning between hydrophilic water and hydrophobic benzene, which are utilised as solvents at room temperature (25°C), are described in this paper. The distribution of the solute benzoic acid between these two solvents is investigated using the shake-flask and titrimetric methods, as well as the acid-base titration method. At several pH ranges (4.0, 7.0, and 9.0), the solubility of salt benzoic acid and their partition into water and benzene-buffer solutions were also investigated.

Author(S) Details

Shiv Prakash Mishra
Faculty of Science, Dr. Ram Manohar Lohia Avadh University, Ayodhya-224001, (U.P.), India.

View Book:- https://stm.bookpi.org/NICB-V3/article/view/4013

Experimental and Theoretical Study on Lipophilicity of Synthetic 1,2-dithiole Derivatives | Chapter 8 | Current Perspectives on Chemical Sciences Vol. 10

 The goal of this research is to establish the log Pwo partition coefficients of eleven compounds, including dithiolethiones, dithiolone, nitrone, 1,2-dithiole-3-imine, and other compounds, using two experimental methods: UV-visible and HPLC. We confirm the results using a theoretical technique for estimating log Pwo values, following the approach of the standard shake-flask approach. The value of the unknown fragmental constant of imine(C=N) and the value found of imine fC=N underlined in the calculatation of log Pwo (N-p-nitrophenyl 5-phenyl-1,2-dithiole-3-imine) are the other parts of this work. The computed log Pwo value was then compared to the experimental research. The results reveal that: I dithiolones are more hydrophilic than dithiolethiones; and (ii) log Pwo values of bromine, imine, and nitrone derivatives have recently been reported in tests. The experimentally observed and computed log Pwo values are in good agreement, according to our research.

Author (s) Details

Z. Rahmani
Laboratoire de Valorisation et Promotion des Ressources Sahariennes, Université Kasdi Merbah de Ouargla, 30000 Ouargla, Algeria.

M. Saidi
Laboratoire de Valorisation et Promotion des Ressources Sahariennes, Université Kasdi Merbah de Ouargla, 30000 Ouargla, Algeria.

M. Yousfi
Laboratoire des Sciences Fondamentales, Université Amar Telidji, (16000) Laghouat, Algeria.

M. Dakmouche
Laboratoire de Valorisation et Promotion des Ressources Sahariennes, Université Kasdi Merbah de Ouargla, 30000 Ouargla, Algeria.

View Book :- https://stm.bookpi.org/CPCS-V10/article/view/1229

A Study on Compositional Approach to Designing FCC High-Entropy Alloys that Have an Enlarged Equiaxed Zone | Chapter 5 | Current Perspectives on Chemical Sciences Vol. 3

 In this research, a compositional approach to the design of alloys with an expanded equiaxed zone is proposed. A directional solidification quenching experiment verified the partitioning of elements during the solidification of high-entropy alloy (HEA) CoCrFeMnNi. By considering factors including solvent enrichment at the columnar front and the melting temperatures and thermal conductivities of the individual elements, several HEAs were intended to optimise the effects of constitutional and thermal undercooling. It was shown that the newly designed HEAs have successfully extended equiaxed zones and enhanced anisotropic properties. The expanded equiaxed zone contributes to the pilot-scale V15 HEA's moderated anisotropy. The creation of new HEA castings containing high proportions of the equiaxed zone could support this approach to alloy design.

Author(s) Details

Minju Kang
Korea Institute of Materials Science, 797 Changwondae-ro, Seongsan-gu, Changwon, Gyeongnam 642-831, Korea.

Jong Woo Won
Korea Institute of Materials Science, 797 Changwondae-ro, Seongsan-gu, Changwon, Gyeongnam 642-831, Korea.

Ka Ram Lim
Korea Institute of Materials Science, 797 Changwondae-ro, Seongsan-gu, Changwon, Gyeongnam 642-831, Korea.

Heoun-Jun Kwon
Korea Institute of Materials Science, 797 Changwondae-ro, Seongsan-gu, Changwon, Gyeongnam 642-831, Korea.

Seong Moon Seo
Korea Institute of Materials Science, 797 Changwondae-ro, Seongsan-gu, Changwon, Gyeongnam 642-831, Korea.

Young Sang Na

Korea Institute of Materials Science, 797 Changwondae-ro, Seongsan-gu, Changwon, Gyeongnam 642-831, Korea.

View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/318