Journal of the Turkish Chemical Society Section A: Chemistry最新文献_第3页

Studying the Effectiveness of an Expired Betamethasone Drug in Sulfuric Acid Solutions to Examine the Corrosive Behavior of Copper Using Weight Loss and Experimental Design 利用失重和实验设计研究硫酸溶液中过期倍他米松药物对铜腐蚀性的影响

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-11-08 DOI: 10.18596/jotcsa.1353785

T. Attar, A. Benchadli

{"title":"Studying the Effectiveness of an Expired Betamethasone Drug in Sulfuric Acid Solutions to Examine the Corrosive Behavior of Copper Using Weight Loss and Experimental Design","authors":"T. Attar, A. Benchadli","doi":"10.18596/jotcsa.1353785","DOIUrl":"https://doi.org/10.18596/jotcsa.1353785","url":null,"abstract":"Utilizing expired pharmaceuticals as corrosion inhibitors for copper in acidic environments offers compelling advantages, including cost-effectiveness, reduced toxicity compared to traditional inhibitors, and contribution to pharmaceutical waste reduction through recycling. This study investigates the corrosion inhibition of copper in a sulfuric acid solution using varying concentrations of Expired Betamethasone Drug, employing weight loss and Experimental Design methods. The influence of temperature on copper's corrosion behavior is examined within the range of 293–333 K. Results show that inhibition efficiency increases with higher inhibitor concentrations but decreases with rising temperature. Thermodynamic analyses elucidate adsorption and activation processes, revealing that the adsorption of Expired Betamethasone Drug on copper surfaces is characterized as endothermic and spontaneous, aligning well with the Langmuir and Frumkin adsorption isotherms. The activation and free energies of inhibition reactions support a mechanism of physical adsorption. To establish the relationship between factors and responses, we employ response surface methodology (RSM) with regression statistical analysis and probabilistic assessment. Statistical analysis demonstrates highly significant quadratic models for inhibition efficiencies (IE) with a coefficient of multiple regressions (R²) of 0.999. Further model validation confirms a strong fit (adjusted R² = 0.997), with experimental observations closely matching predictions and a highly significant model (Q² = 0.989). The findings reveal that this expired drug exhibits substantial inhibitory power, exceeding 96%, in both experimental and predictive calculations.","PeriodicalId":17299,"journal":{"name":"Journal of the Turkish Chemical Society Section A: Chemistry","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139283023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis, Antimicrobial Evaluation, and Docking Study of Some New Isoxazoline Derivatives Derived from Chalcones 从查尔酮衍生的一些新异噁唑啉衍生物的合成、抗菌评价和 Docking 研究

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-11-06 DOI: 10.18596/jotcsa.1353554

Inas Sali̇m, Ahmed MUTANABBİ ABDULA, Abdulkadir MOHAMMED NOORİ JASSİM

引用次数: 0

Synthesis And Characterization of Two New Hofmann-Type-Like Compounds From Some Alkali Metal Atoms And Glycine Anhydride 由一些碱金属原子和甘氨酸酐合成的两种新型霍夫曼类化合物及其特性

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-11-03 DOI: 10.18596/jotcsa.1368425

Z. Kartal, Z. Şahin

{"title":"Synthesis And Characterization of Two New Hofmann-Type-Like Compounds From Some Alkali Metal Atoms And Glycine Anhydride","authors":"Z. Kartal, Z. Şahin","doi":"10.18596/jotcsa.1368425","DOIUrl":"https://doi.org/10.18596/jotcsa.1368425","url":null,"abstract":"In this study, two new compounds with their closed formula, C8H10K2N6NiO4, and C8H10Na2N6NiO4, were synthesized, the first in crystal form and the second in powder form. Various properties of these compounds were characterized by SC-XRD and FT-IR methods. Theoretical information about the compounds was obtained with the help of the Gaussian 03 program. The molecular formula that best reflects the structural properties of this first 3D compound, which is in crystalline form and has polymeric properties, can be given as {K2(GA)(H2O)2[Ni(CN)4]}n. With a similar thought, it can be suggested that the molecular formula that best reflects the structural properties of the second 3D compound in powder form and with polymeric properties will be {Na2(GA)(H2O)2[Ni(CN)4]}n. The asymmetric unit of the {K2(GA)(H2O)2[Ni(μ4-CN)4]}n compound is composed of a half Ni(II) ion, one K(I) cation, two cyanide ligands, a half GA ligand molecule, and one bounded water ligand molecule. The structure of the compound, which consists of 3D polymeric chains, is formed by various bonds between the GA molecule, K(I) cations, water ligand molecules, and Ni(CN)4 ions.","PeriodicalId":17299,"journal":{"name":"Journal of the Turkish Chemical Society Section A: Chemistry","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139289728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supervised Machine Learning-Graph Theory Approach For Analyzing the Electronic Properties of Alkanes 用于分析烷烃电子特性的监督机器学习-图论方法

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-10-28 DOI: 10.18596/jotcsa.1166158

Zubainun MOHAMED ZABİDİ, Nurul Aimi Zakari̇a, Ahmad NAZİB ALİAS

引用次数: 0

A Novel Method to Assay Aspirin in Pharmaceutical Formulations by Smartphone Camera-Based Image Scanning Densitometry 利用基于智能手机摄像头的图像扫描密度计检测药物制剂中阿司匹林含量的新方法

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-10-27 DOI: 10.18596/jotcsa.1339301

Rimsha Khan, Jamil Anwar

{"title":"A Novel Method to Assay Aspirin in Pharmaceutical Formulations by Smartphone Camera-Based Image Scanning Densitometry","authors":"Rimsha Khan, Jamil Anwar","doi":"10.18596/jotcsa.1339301","DOIUrl":"https://doi.org/10.18596/jotcsa.1339301","url":null,"abstract":"Aspirin, a widely-used anti-inflammatory drug, can lead to serious consequences when overdosed. Therefore, there's a need for simple, cost-effective methods to determine its concentration and mitigate potential risks. This study aimed to develop a method for assessing aspirin in pharmaceutical preparations without the need for expensive equipment and with minimal sensitivity to ambient light. In this work, aspirin was subjected to a reaction with Fe(III), leading to the formation of violet-colored spots on filter paper and a 96-microwell plate. These colored spots were then captured using a smartphone in normal lighting conditions and analyzed on a computer. The integrated density of each spot was measured using a novel grayscale technique, and a calibration curve was created to relate integrated density to aspirin concentration. Analytical parameters and reagent concentrations were optimized for accuracy. To validate the method, three commercial aspirin samples were assayed and compared to ultraviolet-visible spectrophotometry, a reference method. The developed technique demonstrated excellent precision (coefficient of variation <0.68%) and relative errors below 5.2%. When compared to traditional color models like red-green-blue (RGB) and hue-saturation-luminosity (HSL), the grayscale model showed superior correlation (R2> 0.996), while the RGB model yielded less precise results (R2= 0.792). This study showcased the effectiveness of a cost-effective methodology for accurate aspirin quantification using a smartphone camera, even in the presence of ambient light.","PeriodicalId":17299,"journal":{"name":"Journal of the Turkish Chemical Society Section A: Chemistry","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139312467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Iodine–β-Cyclodextrin: An Effective Corrosion Inhibitor for Carbon Steel in Sulfuric Acid Solution - Experimental Design and Investigating Thermodynamic Parameters 碘-β-环糊精：硫酸溶液中碳钢的有效缓蚀剂--实验设计与热力学参数研究

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-10-24 DOI: 10.18596/jotcsa.1346065

T. Attar, A. Benchadli, Esma CHOUKCHOU BRAHAM, Amal Benkhaled

{"title":"Iodine–β-Cyclodextrin: An Effective Corrosion Inhibitor for Carbon Steel in Sulfuric Acid Solution - Experimental Design and Investigating Thermodynamic Parameters","authors":"T. Attar, A. Benchadli, Esma CHOUKCHOU BRAHAM, Amal Benkhaled","doi":"10.18596/jotcsa.1346065","DOIUrl":"https://doi.org/10.18596/jotcsa.1346065","url":null,"abstract":"Widely used across industries, carbon steel is vulnerable to corrosion in aggressive environments, especially acidic ones. Thus, effective methods to mitigate metal corrosion from acids are crucial. Inhibitors are extensively used to prevent corrosion in industries, with the potential for improved protective performance. The design of experiments was employed to determine the optimal conditions for enhancing the inhibitor efficiency of Iodine–β-Cyclodextrin (Iodine/β-CD) in a sulfuric acid solution at temperatures ranging from 20°C to 50°C. The relationship between the factors and responses was established using response surface methodology (RSM), employing regression statistical analysis and probabilistic analysis. A single response was recorded: inhibitor efficiency was determined by measuring weight loss before and after immersion in the inhibitor solution. Thermodynamic parameters were also computed to determine adsorption and activation processes. The statistical analysis revealed that the quadratic models for inhibition efficiencies (IE) were highly significant with a coefficient of multiple regressions R2= 0.997. Further validation of the model indicated a good fit (R2 Adj= 0.994), and the experimentally observed values aligned well with predicted ones, demonstrating a highly significant model with Q2= 0.978. The theoretical efficiency predicted by the RSM model was 88.41%, whereas the efficiency observed during the experimental test procedure with the best-evaluated variables was 82.45%. In conclusion, this paper aims to identify the optimal conditions for employing Iodine–β-Cyclodextrin as a new corrosion inhibitor for carbon steel, utilizing experimental design methods. The results indicate that iodine/β-CD exhibits remarkable corrosion inhibitory properties for carbon steel under specific conditions.","PeriodicalId":17299,"journal":{"name":"Journal of the Turkish Chemical Society Section A: Chemistry","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139314748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sorption Behaviors of Amorphous Titanium Phosphate Towards Neodymium and Dysprosium 无定形磷酸钛对钕和镝的吸附行为

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-10-24 DOI: 10.18596/jotcsa.1337768

Süleyman İnan

引用次数: 0

Fe3O4@SA MNCs Synthesis, Characterization, and First-time Use in Hydrogen Production by NaBH4 Hydrolysis Fe3O4@SA MNCs 的合成、表征以及在通过 NaBH4 水解制氢中的首次应用

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-10-23 DOI: 10.18596/jotcsa.1354766

Adil Umaz

{"title":"Fe3O4@SA MNCs Synthesis, Characterization, and First-time Use in Hydrogen Production by NaBH4 Hydrolysis","authors":"Adil Umaz","doi":"10.18596/jotcsa.1354766","DOIUrl":"https://doi.org/10.18596/jotcsa.1354766","url":null,"abstract":"Hydrogen is a clean energy carrier that will reduce dependence on fossil fuels and contribute to reducing the harmful effects on the environment resulting from using fossil fuels. Hydrogen is produced by the hydrolysis of sodium borohydride (NaBH4), one of the chemical hydrides, using a catalyst. In this study, Fe3O4@Salicylic acid magnetic nano-catalyst (Fe3O4@SA MNCs) was synthesized using the co-precipitation technique. The structural, physical, and chemical properties of the produced Fe3O4@SA MNCs were characterized by FT-IR, XRD, VSM, SEM, and SEM-EDX methods. At room temperature, the effect on hydrogen production performance was examined in the amounts of Fe3O4@SA MNCs (10, 25, 50, 75, and 100 mg), NaOH (0, 10, 20, and 25 mg), and NaBH4 (25, 50, 100, 150 and 200 mg). The highest hydrogen generation rates (HGR) were obtained using 10 mg Fe3O4@SA MNCs, 150 mg NaBH4, and 0 mg NaOH at room temperature. The obtained HGR value was calculated as 400 mL gcat-1.min-1. Fe3O4@SA MNCs were used for hydrogen production for the first time in this study. This study showed that Fe3O4@SA MNCs exhibit catalytic properties and are a promising, efficient catalyst in hydrogen production from NaBH4.","PeriodicalId":17299,"journal":{"name":"Journal of the Turkish Chemical Society Section A: Chemistry","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139315109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of Methyl Orange from Aqueous Solution Using Orange Peel as a Low Cost Adsorbent 用橘皮作为低成本吸附剂去除水溶液中的甲基橙

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-10-09 DOI: 10.18596/jotcsa.1313059

Ahmed Lawal, Abdulhafeez Abdulsalam

{"title":"Removal of Methyl Orange from Aqueous Solution Using Orange Peel as a Low Cost Adsorbent","authors":"Ahmed Lawal, Abdulhafeez Abdulsalam","doi":"10.18596/jotcsa.1313059","DOIUrl":"https://doi.org/10.18596/jotcsa.1313059","url":null,"abstract":"The objective of this research was to evaluate the feasibility of using orange peels as a low-cost adsorbent to remove methyl orange (MO) from water solutions. The orange peel adsorbent underwent characterization through Scanning Electron Microscopy (SEM) and Fourier Transform Infrared (FTIR) Spectroscopy to determine its properties before and after adsorption. A series of batch adsorption experiments were carried out to investigate the effects of various parameters such as contact time, adsorbent dosage, particle size, and initial dye concentration on the adsorption process. In each case, varying the value of the parameter of interest while keeping all other parameters constant. Results revealed that the highest removal of the dye from the adsorbent was achieved at a contact time of 90 min, the adsorbent dosage of 0.5 g, a particle size of less than 63 µm, and an initial concentration of 300 mg/L. Furthermore, the adsorption rate increased with increasing contact time, adsorbent dosage, and initial concentration, while it decreased with increasing particle size of the adsorbent. Concentrations of methyl orange were analyzed using a UV-Vis spectrophotometer. The experimental equilibrium data was analyzed using Langmuir and Freundlich isotherm models. The Langmuir isotherm provided the best fit for the experimental data with a correlation coefficient value of 0.9964 and a maximum adsorption capacity of 17.69 mg/g.","PeriodicalId":17299,"journal":{"name":"Journal of the Turkish Chemical Society Section A: Chemistry","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139321670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of Micro Amounts of Promethazine Hydrochloride in Pure and Pharmaceutical Samples Using UV- Visible Spectrophotometry 利用紫外可见分光光度法测定纯样品和药用样品中盐酸异丙嗪的微量含量

Journal of the Turkish Chemical Society Section A: Chemistry Pub Date : 2023-10-02 DOI: 10.18596/jotcsa.1286566

I. Humei̇dy

{"title":"Determination of Micro Amounts of Promethazine Hydrochloride in Pure and Pharmaceutical Samples Using UV- Visible Spectrophotometry","authors":"I. Humei̇dy","doi":"10.18596/jotcsa.1286566","DOIUrl":"https://doi.org/10.18596/jotcsa.1286566","url":null,"abstract":"This study presents the development of a novel, facile, and overly sensitive spectrophotometric approach for quantifying promethazine hydrochloride (PRO) within its pharmaceutical formulations. The method capitalizes on an oxidative coupling reaction, achieved through the oxidation of the compound in an acidic milieu utilizing ammonium cerium (IV) sulfate dehydrate (Ce+4) solution. This process leads to the creation of a green-colored solution, which, upon conjugation with 5-aminosalicylic acid, exhibits maximum absorption at a wavelength of 598 nm. The methodology investigated several parameters, encompassing oxidation duration, temperature, quantities of oxidizing agent and coupling reagent, and determining the stoichiometric ratio between promethazine hydrochloride and 5-aminosalicylic acid. The established ratio was confirmed to be 1:1. Numerous organic solvents were evaluated, with water emerging as the optimal choice due to its pronounced absorption characteristics at the 598 nm wavelength. The applicability of Beer's law was verified over a concentration range of 2 - 28 μg/mL of promethazine hydrochloride, with a calculated molar absorption coefficient of 1.9606 x 104 L/mol∙cm. The Sandell sensitivity index was determined as 0.0164 μg/cm2, while the relative standard deviation (RSD) ranged from 0.8553- 1.2671%. Notably, recovery percentages were also within the 99.88 – 100.34% range. The efficacy of this technique was effectively demonstrated through its successful application in the analysis of pharmaceutical formulations containing promethazine hydrochloride, employing the standard method as a benchmark.","PeriodicalId":17299,"journal":{"name":"Journal of the Turkish Chemical Society Section A: Chemistry","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139324129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0