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  3. Volume 15, Number 3, 2021

Volume 15, Number 3, 2021

In this Number

(20 papers)
The Influence of Sample pH on the Determination of Selected Carboxylic Acids by Isocratic Ion Chromatography
Paulina Pecyna-Utylska, Tomasz Konieczny, Rajmund Michalski
DOI: https://doi.org/10.23939/chcht15.03.319
pp. 319 - 323
Voltammetric Determination of Pd(II) Using 5-Hydroxyimino-4-imino-1,3-thiazolidin-2-one after a Thermal Activation of the Interaction
Petro Rydchuk, Oksana Labyk, Lesya Oleksiv, Oleksandr Tymoshuk, Taras Chaban
DOI: https://doi.org/10.23939/chcht15.03.324
pp. 324 - 329
Linear Hexane Isomerization Over Bimetallic Zeolite Catalysts
Lyubov Patrylak, Oleksandra Pertko, Yuliya Voloshyna, Anzhela Yakovenko, Volodymyr Povazhnyi, Oleksandr Melnychuk, Kostyantyn Zlochevskyi
DOI: https://doi.org/10.23939/chcht15.03.330
pp. 330–335
Superacid ZrO2–SiO2–SnO2 Mixed Oxide: Synthesis and Study
Svitlana Prudius, Natalia Hes, Volodymyr Trachevskiy, Oleg Khyzhun, Volodymyr Brei
DOI: https://doi.org/10.23939/chcht15.03.336
pp. 336–342
Assessing the Effects of Substitution and Substituent Position on the Reactivity of Salicylideneaniline Ligands to Coordinate Transition Metal(II) Ions: a DFT Study
Mohamed Sellami, Djamel Barkat, Salah Eddine Hachani
DOI: https://doi.org/10.23939/chcht15.03.343
pp. 343–351
Influence of Amino Acids and Alcohols on Catalytic Oxidation of Cyclohexane
Anatolij Ludyn, Volodymyr Reutskyy, Viktor Reutskyy, Yurii Hrynchuk
DOI: https://doi.org/10.23939/chcht15.03.352
pp. 352–358
One-Dimensional Hydrogen-Bonded N–H…O in the Hybrid Phosphate: Hirshfeld Surface Analysis and DFT Quantum Chemical Calculations
Abdellatif Rafik, Hafid Zouihri, Taoufiq Guedira
DOI: https://doi.org/10.23939/chcht15.03.359
pp. 359–368
Synthesis and Structure of Urea-Formaldehyde Oligomers with Peroxide Groups
Olena Astakhova, Olena Shyshchak, Michael Bratychak
DOI: https://doi.org/10.23939/chcht15.03.369
pp. 369–376
Synthesis, Characterization and Application of a Diatomite-Based Composite for the Adsorption of Anionic Dyes in Aqueous Solutions
Sadek Chentouf, Smail Kacha, Réda Marouf, Fouad Mekhalef Benhafsa, Abdelkader Leboukh, Ahmed Yahiaoui
DOI: https://doi.org/10.23939/chcht15.03.377
pp. 377–388
Electrosynthesis of Ni-Co/Hydroxyapatite as a Catalyst for Hydrogen Generation via the Hydrolysis of Aqueous Sodium Borohydride (NaBH4) Solutions
Adrian Nur, Anatta W. Budiman, Arif Jumari, Nazriati Nazriati, Fauziatul Fajaroh
DOI: https://doi.org/10.23939/chcht15.03.389
pp. 389–394
Kinetic Model for Dissolution of Cement Copper in Sulfuric Acid Solutions Containing Cupric Ions
Nizamettin Demirkiran, Deniz Turhan Özdemir
DOI: https://doi.org/10.23939/chcht15.03.395
pp. 395–402
Compositional Fibers Based on Coal Tar Mesophase Pitch Obtained by Electrospinning Method
Aldan Imangazy, Gaukhar Smagulova, Bayan Kaidar, Zulkhair Mansurov, Almagul Kerimkulova, Kuanysh Umbetkaliev, Anvar Zakhidov, Pavel Vorobyev, Talkybek Jumadilov
DOI: https://doi.org/10.23939/chcht15.03.403
pp. 403–407
Establishment of the Regularities of the Concentrations Change of Microorganisms and Water-Soluble Compounds in Polluted Water after Ultrasound Treatment
Volodymyr Starchevskyy, Nataliya Bernatska, Iryna Typilo, Lilianna Oliynyk, Orysia Strogan
DOI: https://doi.org/10.23939/chcht15.03.408
pp. 408–413
Study on Chemistry of Oxidative Desulfurization Process of High Sulfur Straight-Run Oil Fraction
Serhiy Pyshyev, Bohdan Korchak, Denis Miroshnichenko, Bemgba Bevan Nyakuma
DOI: https://doi.org/10.23939/chcht15.03.414
pp. 414–422
Peculiarities of Dewatering Technology for Heavy High-Viscosity Crude Oils of Eastern Region of Ukraine
Petro Topilnytskyy, Tetiana Yarmola, Viktoria Romanchuk, Justyna Kucinska-Lipka
DOI: https://doi.org/10.23939/chcht15.03.423
pp. 423–431
Study on the Properties of Semi-Synthetic Motor Oil Castrol 10W-40 after Use in a Diesel Engine
Taras Chervinskyy, Oleg Grynyshyn, Roman Prokop, Pavlo Shapoval, Bohdan Korchak
DOI: https://doi.org/10.23939/chcht15.03.432
pp. 432–437
Investigation of Petroleum Bitumen Resistance to Aging
Oleg Grynyshyn, Myroslava Donchenko, Yurii Khlibyshyn, Olha Poliak
DOI: https://doi.org/10.23939/chcht15.03.438
pp. 438–442
Production of Bitumen Modified with Low-Molecular Organic Compounds from Petroleum Residues. 2. Bitumen Modified with Maleic Anhydride
Volodymyr Gunka, Yuriy Prysiazhnyi, Yurii Hrynchuk, Iurii Sidun, Yuriy Demchuk, Olena Shyshchak, Michael Bratychak
DOI: https://doi.org/10.23939/chcht15.03.443
pp. 443–449
Modification of the Electrode Pitch Operational Properties
Anatoly Starovoyt, Evgeniy Malyi, Michael Chemerinskii, Anatoly Timoshenko
DOI: https://doi.org/10.23939/chcht15.03.450
pp. 450–456
150 Years of Chemical and Technological Education at Lviv Polytechnic National University
Kostiantyn Blazhivskyi, Volodymyr Skorokhoda
pp. І–ІІІ