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All published articles 1032

Design, Synthesis and Antibacterial Evaluation of 3-oxo-2-[2-(1-phenylethylidene)hydrazinyl]-3,4-dihydroquinoxaline-6-sulfonyl Azide Derivatives

Festus O. Taiwo, Oluwatayo E. Abioye, Olajide B. Omoyeni, David A. Akinpelu & Craig A. Obafemi · International Research Journal of Pure and Applied Chemistry · 2026

This study was designed to synthesized some 3-oxo-2-(2-(1-phenylethylidene)hydrazinyl)-3,4-dihydroquinoxaline-6-sulfonyl azide derivatives and study their antibacterial potentials on some bacterial strains. 3-oxo-2-(2-(1-phenylethylidene)hydrazinyl)-3,4-dihydroquinoxaline-6-sulfo...

Open access Research Article 10.9734/irjpac/2026/v27i51027

Production and Physicochemical Characterization of Polyethylene Pyrolysis Oil from Sachet Water LDPE Waste

Uhiene Titus, Sunday A. Osemeahon, Amina Aminu, Blessed Dimas & Daniel Wasinda Malgwi · International Research Journal of Pure and Applied Chemistry · 2026

This study investigated the production and characterisation of polyethylene pyrolysis oil obtained from waste low-density polyethylene materials, specifically sachet-water packaging bags. The polyethylene waste was collected, sorted, washed, rinsed, and dried. A 15 kg portion of...

Open access Research Article 10.9734/irjpac/2026/v27i51026

Evaluation of 2,5,7-Triphenyl-1,2,4-triazolo[1,5-a] pyrimidine as an Efficient Corrosion Inhibitor for Stainless Steel in 1.0 M Hydrochloric Acid

Madhuram Ayush & Shilpa · International Research Journal of Pure and Applied Chemistry · 2026

Corrosion inhibition of 316 L stainless steel in 1.0 M hydrochloric acid by 2,5,7-triphenyl-1,2,4-triazolo[1,5-a]pyrimidine (TPTP) was evaluated using weight-loss measurements, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarisation (PDP). The effect of inh...

Open access Research Article 10.9734/irjpac/2026/v27i51025

Physicochemical Characteristics and Selected Metal Concentrations in Sachet, Bottled, and Freshly Blended Fruit Juices at the Kenya-Uganda Border

Denis Magero, Kevin Omondi Ondoo & Victor Meng’wa · International Research Journal of Pure and Applied Chemistry · 2026

Fruits form an important part of the human diet as they are rich in fibre and vitamins such as A, B, C, D and K. They can be consumed fresh or whole, in liquid forms such as juices and smoothies/blends, as well as in cooked or baked form. The objective of this study is to assess...

Open access Research Article 10.9734/irjpac/2026/v27i51023

Deep Purification of Wet-process Phosphoric Acid Using Acetone as a Green Organic Solvent

B. N. Karshiev, Madaminbek Bakhrom-ugli Khushvaktov, A. R. Seytnazarov, S. Namazov Sh. & D. M. Axmedova · International Research Journal of Pure and Applied Chemistry · 2026

Wet-process phosphoric acid contains a range of mineral impurities that negatively impact acid quality and restrict its use in producing high-purity phosphate products. This study investigates an integrated purification process that combines defluorination using microcrystalline...

Open access Research Article 10.9734/irjpac/2026/v27i51024

Extraction and Characterization of Chitosan from Crab and Periwinkle Shells

Chioma K. Anyiam & Jovita A. Daniel · International Research Journal of Pure and Applied Chemistry · 2026

Chitosan is a biopolymer obtained by deacetylating chitin and is commonly produced from crustacean shell waste. This study compared the extraction and characterisation of chitosan from crab (Callinectes amnicola) and periwinkle (Tympanotonus fuscatus) shells under identical chemi...

Open access Research Article 10.9734/irjpac/2026/v27i51022

A New Zinc(II) Thiocyanate Complex of a Pyridine-4-carbohydrazide Schiff Base: Crystal Structure and Redox Properties of a Related Copper(II) Complex

Ousmane Sall, Moussa Faye, Alassane Saïdou Diallo, Abdoul Sall, Farba Bouyagui Tamboura, Ibrahima Elhadj Thiam, Moussa Dieng & Mohamed Gaye · International Research Journal of Pure and Applied Chemistry · 2026

A new zinc(II) complex, ZnCl(SCN)(H₂L)₂, derived from the Schiff base ligand N′-[(E)-(2-hydroxy)methylidene]pyridine-4-carbohydrazide (H₂L), was synthesised and structurally characterised by single-crystal X-ray diffraction. The complex crystallises in the orthorhombic space grou...

Open access Research Article 10.9734/irjpac/2026/v27i51021

Analysis of Risk Factors for Erosion and Runoff in the Isser Catchment

Zeinabou MAHAMADOU, Mohamed Mounkaila, Yahouza Zaneidou, Salifou Karimoune Fadjimata, Mahamadou Abdoul Aziz, Attika Sabiou & Marou Gourouza · International Research Journal of Pure and Applied Chemistry · 2026

Water erosion and runoff are important contributors to soil degradation in the semi-arid Isser catchment of north-western Algeria. The area is characterised by irregular rainfall events of short duration and generally high intensity, with the manuscript reporting a maximum rainfa...

Open access Research Article 10.9734/irjpac/2026/v27i41020

Comparative Analysis of the Chemical Indices of Oils Extracted from Local and Imported Banana Peels in Senegal

Ndiak Ndiaye, Maty Diop, Sokhna Aminatou Mbaye, Emeline Kathieo, Ismaila Niang & Alioune Fall · International Research Journal of Pure and Applied Chemistry · 2026

Banana peels are widely generated agricultural by-products whose recovery may support waste reduction and the sustainable use of plant-derived resources. This study compared the chemical indices of oils extracted from local and imported banana peels marketed in Senegal. Ripe bana...

Open access Research Article 10.9734/irjpac/2026/v27i41019

Microwave-Assisted Green Synthesis and Antimicrobial Evaluation of Triphenyl-[1,2,4]-triazolo-[1,5-a]pyrimidine Analogues

Ranjan Kumar Singh & K P Srivastava · International Research Journal of Pure and Applied Chemistry · 2026

A rapid, environmentally friendly and efficient microwave-assisted one-pot synthesis was developed for novel 2,5,7-triphenyl-1,2,4-triazolo[1,5-a]pyrimidine derivatives using a recyclable polyphosphoric acid-silica (PPA-SiO₂) catalyst. The compounds were synthesized via a three-c...

Open access Research Article 10.9734/irjpac/2026/v27i41018

The Extraction of Some Water Bound Metal Ions using Palmitic Acid as a Green Extractant

A. E. Nyong, J. Alexander, W. George, G. J. Udo, J. J. Awaka-ama, J. Felix & C. Obadimu · International Research Journal of Pure and Applied Chemistry · 2026

Background: Nickel (Ni²⁺) and iron (Fe²⁺) ions from industrial wastewater pose environmental risks because of their toxicity and persistence in water systems. Conventional extraction methods often use toxic organic reagents, which has increased interest in greener alternatives. N...

Open access Research Article 10.9734/irjpac/2026/v27i41017

Recent Advances in Physicochemical Properties and Applications of Schiff Bases and Heterocyclic Drug Systems

Dipak Patil · International Research Journal of Pure and Applied Chemistry · 2026

Schiff bases and heterocyclic drug systems are becoming increasingly important in medicinal and materials chemistry because of their remarkable physicochemical and biological properties. Schiff bases containing azomethine (>C=N–) functionality possess excellent chelating abili...

Open access Research Article 10.9734/irjpac/2026/v27i41016

Hydrochemical Assessment and Irrigation Suitability of Groundwater in the Grande Niaye of Pikine (Dakar): Contribution of Multivariate Analysis and Water Quality Indices

Mariama Bakhoum, Mor Wade, Abdoulaye Dioum, Adrienne Ndiolenne & Tidiane Diop · International Research Journal of Pure and Applied Chemistry · 2026

Groundwater quality is a key concern for sustaining market gardening in peri-urban semi-arid settings where agricultural intensification, urban growth and inadequate sanitation may affect irrigation resources. This study assessed the hydrochemical characteristics and irrigation s...

Open access Research Article 10.9734/irjpac/2026/v27i41015

Environmentally Benign Approach to the Synthesis and Biological Evaluation of Derivatives of Pyrrolo[2,3-b]pyridine

Ranjan Kumar Singh & K. P. Srivastava · International Research Journal of Pure and Applied Chemistry · 2026

A series of novel 7-(phenacyl)-1H-pyrrolo[2,3-b]pyridinium bromide analogues was synthesised using an environmentally benign and efficient protocol. The methodology involved the direct N-alkylation of 1H-pyrrolo[2,3-b]pyridine with substituted phenacyl bromides under mild conditi...

Open access Research Article 10.9734/irjpac/2026/v27i41012

Eco-Friendly Fabrication of Biogenic Nanocomposites and their Application in Selective Removal of Heavy Metal Ions from Aqueous Systems

Parth Anilkumar Barot, Gaurang Rami & Mohyuddin A. Maradiya · International Research Journal of Pure and Applied Chemistry · 2026

The present study investigates the eco-friendly synthesis of a biogenic chitosan–Fe₃O₄ nanocomposite using Moringa oleifera leaf extract as a natural reducing and stabilising agent, and its application in the selective removal of heavy metal ions from aqueous systems. Magnetite n...

Open access Research Article 10.9734/irjpac/2026/v27i41013