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United Journal of Chemistry

Rapid Publication | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2581-7760

Experimental Evaluation of Water Vapor Adsorption on Silica Gel, PCM-Modified Silica, Alumina, Zeolite, and Mixed Adsorbents

Introduction Controlling the moisture content of air is a fundamental aspect of many industrial and environmental applications, such as the preservation of hygroscopic materials, climate control, process drying, and thermal energy storage. In these systems, effective moisture management is essential to ensure product quality, process performance, and energy efficiency [1]. …

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Sources and Impacts of Microplastics Release from Recycling: A Study of Selected Recycling Facilities in Alimosho Area of Lagos, Nigeria.

Research indicates that by 2050 there will be a big escalation in plastic waste generation, it has been estimated to be around twelve million tons as a consequence that plastics do not biodegrade like majority of items in the world[1]. Recently microplastics have emerged as a source of immense concern, …

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Toxicity Levels of Nitrate And Nitrite In Selected Soft Drinks Sold In Lafia, Nigeria

Introduction : Nitrates (NO3–) and nitrites (NO2–) are essential inorganic compounds that play significant roles in the nitrogen cycle, contributing both to plant nutrition and potential health risks in humans. Chemically, both ions consist of nitrogen and oxygen atoms arranged in planar structures. Nitrate contains one nitrogen atom bonded to …

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Green-Synthesized AgNPs for Bacterial Efficacy and Sustainable Development Goals

Materials in nano-confines (1–100 nm) have remarkable differences in parcels compared to bulk materials. These differences exist in the physical and structural parcels of particles, molecules, and bulk paraphernalia owing to differences in physicochemical parcels and face-to-volume rates¹. With advances in nanotechnology, numerous nanomaterials with unique properties have emerged, opening …

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Pozzolanic action of nanoparticles of ceramic sludge ash with Portland cement pastes

Introduction     Carbon dioxide emission (CO2) during the manufacture of cement is the main anthropogenic contributor to global warming [1-3]. Global warming may lead to human casualties and substantial economic losses [3, 4]. To minimize CO2 emissions from cement industry, the ceramic sludge ash (CSA) could be used as a …

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Synthesis and Characterization of a Water-Soluble Salicylic Acid Phosphorodiamidate

Introduction Salicylic acid (SA) is a naturally occurring phenolic compound widely recognized for its broad spectrum of pharmacological activities, including anti-inflammatory, analgesic, antipyretic, and antimicrobial effects. It is a key metabolite of aspirin and has been extensively used in topical and systemic formulations for the treatment of various inflammatory disorders, …

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Rational Design of Naproxen–Paracetamol Cocrystals for Improved Solubility, Stability, and Formulation Efficiency

Introduction Cocrystallization has emerged as one of the most versatile and sustainable solid-state modification strategies in modern pharmaceutical design. It enables the modulation of key physicochemical properties of active pharmaceutical ingredients (APIs) such as solubility, dissolution rate, stability, and mechanical behavior without altering their intrinsic pharmacological activity or chemical structure. …

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Exploiting Wastewater as a Photoelectrochemical Energy Source in Biphasic Liquid Crystal Batteries

Introduction Photogalvanic Cells and Biphasic Liquid Crystal Systems Photogalvanic cells work by generating high-energy products when a photon excites the system; these energy-rich products subsequently release their energy electrochemically in the form of electricity. A change in the concentration of the two forms of the redox couple enables the cell …

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Assessment of Caffeine and Chlorogenic Acids in Defective vs. Non-Defective Coffee Beans by First-Order Derivative Spectra

Introduction Globally, coffee is one of the most widely consumed beverages, with an estimated average daily consumption of 2.3 billion cups per day (Higdon and Frei, 2006). Despite its popularity, the consistent supply of high-quality coffee beans is often limited due to challenges encountered during harvesting and post-harvesting processes. As …

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Evaluation of Caffeine in Food and Pharmaceutical Samples

Introduction: The International Union of Pure and Applied Chemistry (IUPAC) name of caffeine (chemical formula C₈H₁₀N₄O₂) is trimethylxanthine, commonly referred to as 1,3,7-trimethylxanthine or 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione. Caffeine is a naturally occurring methylxanthine alkaloid and is widely recognized for its stimulating effects on the central nervous system. It is generally used for …

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