International Research Journal of Pure and Applied Chemistry最新文献_第10页

Capillary Pressure Behavior of CO2 - Shale System at Elevated Temperatures 高温下CO2 -页岩体系的毛细压力行为

International Research Journal of Pure and Applied Chemistry Pub Date : 2022-05-05 DOI: 10.9734/irjpac/2022/v23i230456

A. Almutairi, T. Al-Bazali

{"title":"Capillary Pressure Behavior of CO2 - Shale System at Elevated Temperatures","authors":"A. Almutairi, T. Al-Bazali","doi":"10.9734/irjpac/2022/v23i230456","DOIUrl":"https://doi.org/10.9734/irjpac/2022/v23i230456","url":null,"abstract":"In this study, changes in capillary entry pressure of shale when interacting with CO2, under different temperatures have been investigated. The combined impact of temperature and petrophysical properties of shale (water content, water activity, permeability and porosity) on capillary entry pressure was addressed. Pressure breakthrough measurements were used to evaluate the minimum entry pressure of CO2 through shale. A heavy-duty oven was used to vary the temperature in order to investigate the impact of temperature on CO2 capillary entry pressure through shale. Results showed that capillary entry pressure of shale when interacting with CO2 was highly affected by temperature. Higher temperatures decreased capillary entry pressure of shale. We believe that pore dilation, where pore throat size expands due to the application of heat, may have caused this decrease in capillary entry pressure. However, in some cases higher temperature activated clay swelling that may have caused an apparent decrease in pore throat radii of shale which translated into higher capillary entry pressure. Results also showed that there exists no distinct relationship between petrophysical properties of shale and its measured capillary entry pressure when interacting with CO2 at different temperatures. Heat could alter pore throat radii and cause pore dilation which may alter measured capillary entry pressure. Interfacial tension decreases with increasing temperature and that can be attributed to the weakening of intermolecular forces at the two immiscible fluids interface. Swelling of clay could be related to temperature-induced transition from passive to an active clay.","PeriodicalId":14371,"journal":{"name":"International Research Journal of Pure and Applied Chemistry","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85308358","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

Adsorbents Used for Removal of Mercury from Aqueous Solutions: A Review 用于去除水溶液中汞的吸附剂:综述

International Research Journal of Pure and Applied Chemistry Pub Date : 2022-05-03 DOI: 10.9734/irjpac/2022/v23i130455

M. Aljohani, Abdullah A. Makki, Adel A. Alqarni, Khalid A. Albalawi, Asim S. Albalawi, M. Alharbi, Hatem A. Al-Aoh, Syed Khalid Mustafa

引用次数: 1

Theoretical Evaluation of Some Compounds with Antifungal Effect as Corrosion Inhibitors for Copper in Nitric Acid Solution: DFT Calculations 硝酸溶液中对铜具有抑菌作用的化合物的理论评价:DFT计算

International Research Journal of Pure and Applied Chemistry Pub Date : 2022-04-02 DOI: 10.9734/irjpac/2022/v23i130448

Cissé M’Bouillé, M. A. Tigori, M. L. Doumbia, P. Niamien, M. Touhami, M. Sfaira

引用次数: 1

Theoretical Study of the Chemical Reactivity of a Series of 2, 3-Dihydro-1H-Perimidine 一系列2,3 -二氢- 1h -嘧啶化学反应性的理论研究

International Research Journal of Pure and Applied Chemistry Pub Date : 2022-01-28 DOI: 10.9734/irjpac/2022/v23i130451

Nanou Tiéba Tuo, Georges Stéphane Dembélé, Soro Doh, Fandia Konate, B. Konaté, C. Kodjo, N. Ziao

引用次数: 3

The Mechanism of the Davy Test for Strychnine 士的宁戴维试验的机理

International Research Journal of Pure and Applied Chemistry Pub Date : 2022-01-28 DOI: 10.9734/irjpac/2022/v23i130438

F. Sánchez-Viesca, Reina Gómez

引用次数: 4

Determination of Sulphate Ion Concentration in Some Ground Water in the Cape Coast Metropolitan Area, Central Region, Ghana and Its Effects on Concrete Brick with Admixture of Sawdust Ash 加纳中部海岸角市区部分地下水硫酸盐离子浓度的测定及其对木屑灰掺合料混凝土砖的影响

International Research Journal of Pure and Applied Chemistry Pub Date : 2022-01-22 DOI: 10.9734/irjpac/2022/v23i130445

Andy Kofi Agoe, Michael Akrofi Anang, Emmanuel Siaw

{"title":"Determination of Sulphate Ion Concentration in Some Ground Water in the Cape Coast Metropolitan Area, Central Region, Ghana and Its Effects on Concrete Brick with Admixture of Sawdust Ash","authors":"Andy Kofi Agoe, Michael Akrofi Anang, Emmanuel Siaw","doi":"10.9734/irjpac/2022/v23i130445","DOIUrl":"https://doi.org/10.9734/irjpac/2022/v23i130445","url":null,"abstract":"The admixture was prepared from Sawdust waste (SDA) and was pyrolysis by placing it in a Nabertherm (SN224350) at a controlled condition. The SDA was characterized using X-ray diffraction technique and applied as an admixture in producing concrete brick with good cementitious properties. Some key factors that contribute to concrete durability such as compacting, curing ages and the essence of quality water were taking into accounts.The sulphate ion concentration in ground water source was determined and its effects on concrete brick with 5 % SDA, 15 % SDA and 25 % SDA replacement were assessed and its compressive strength reported.5% replacements of sawdust ash, concrete brick (no curing) was found to have suffered greater attack at 28 days immersion period as compared to concrete bricks cured for 3 days and 7 days. 3 days curing and no curing of concrete brick showed a greater resistance against Sulphate intrusion with 25% sawdust ash replacements at 28 days immersion period. Premature curing of concrete brick for 7 days, with an increase in sawdust ash replacement were even more vulnerable to sulphate ion attack than concrete brick with 3 days curing and no curing.","PeriodicalId":14371,"journal":{"name":"International Research Journal of Pure and Applied Chemistry","volume":"131 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74579419","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

Field Evaluation of Indofil Z-78 against Fruit Rot (Colletotrichum sp.) and Leaf Spot (Alternaria and Cercospora) Disease of Pomegranate 吲哚酚Z-78防治石榴果腐病和叶斑病的田间评价

International Research Journal of Pure and Applied Chemistry Pub Date : 2021-12-30 DOI: 10.9734/irjpac/2021/v22i1230453

Suresh D. Ekabote, .. Pruthviraj, U. Divyajyothi, S. Nalina

{"title":"Field Evaluation of Indofil Z-78 against Fruit Rot (Colletotrichum sp.) and Leaf Spot (Alternaria and Cercospora) Disease of Pomegranate","authors":"Suresh D. Ekabote, .. Pruthviraj, U. Divyajyothi, S. Nalina","doi":"10.9734/irjpac/2021/v22i1230453","DOIUrl":"https://doi.org/10.9734/irjpac/2021/v22i1230453","url":null,"abstract":"The pomegranate (Punica granatum L.), is one of the ancient and highly praised favorite fruit belongs family Lythraceae of Myrtales order which is mainly grown in tropical and subtropical regions of the world. In recent years for successful cultivation of pomegranate, faced by many constraints, among them, pest and diseases are the major ones. Common pathogens of pomegranate leaf and fruits include Anthracnose and Cercospora and Alternaria leaf spot and these pathogens cause severe loss to pomegranate crop. Therefore, a field experiment was carried out on the effect of Indofil Z-78 against leaf spots and fruit rot of pomegranate during 2018-19 and 2019-2020 at College of Horticulture, Hiriyur. Experimental results revealed that all the treatments significantly reduced the leaf spots and fruit rot disease severity over untreated control.Amongst all the treatments in both seasons. Indofil Z-78 @ 4 gm/liter was most effective in management leaf spots (15.18 and 12.33 PDI), anthracnose (10.55 and 15.13 PDI) with a yield of 4.00 tons/ha and 3.82 tons/ ha respectively followed by the same fungicides at 3.00 gm/liter.","PeriodicalId":14371,"journal":{"name":"International Research Journal of Pure and Applied Chemistry","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78991418","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

Field Evaluation of Indofil M-45 against Fruit Rot (Colletotrichum sp.) Leaf Spot (Alternaria and Cercospora) Disease of Pomegranate Indofil M-45防治石榴果腐病(炭疽病)、叶斑病(交替病)的田间评价

International Research Journal of Pure and Applied Chemistry Pub Date : 2021-12-30 DOI: 10.9734/irjpac/2021/v22i1230454

S. D. Ekabote, P. ., U. Divyajyothi, S. Nalina

{"title":"Field Evaluation of Indofil M-45 against Fruit Rot (Colletotrichum sp.) Leaf Spot (Alternaria and Cercospora) Disease of Pomegranate","authors":"S. D. Ekabote, P. ., U. Divyajyothi, S. Nalina","doi":"10.9734/irjpac/2021/v22i1230454","DOIUrl":"https://doi.org/10.9734/irjpac/2021/v22i1230454","url":null,"abstract":"The pomegranate (Punica granatum L.), is one of the ancient and highly praised favorite fruit belongs family Lythraceae of Myrtales order which is mainly grown in tropical and subtropical regions of the world. In recent years for the successful cultivation of pomegranate, faced by many constraints, among them, pest and diseases are the major ones. Common pathogens of pomegranate leaf and fruits include Anthracnose and Cercospora and Alternaria leaf spot and these pathogens cause severe loss to pomegranate crop. Therefore, a field experiment was carried out on the effect of Indofil M- 45 against leaf spots and fruit rot of pomegranate during 2018-19 and 2019-2020 at College of Horticulture, Hiriyur. Experimental results revealed that all the treatments significantly reduced the leaf spots and fruit rot disease severity over untreated control. Amongst all the treatments in both seasons. Indofil M-45 atat gm/liter was most effective in management leaf spots (15.50 and 16.17 PDI), anthracnose (10.55 and 8.33 PDI) with a yield of 4.18 tons/ha and 3.59 tons/ ha respectively followed by the same fungicides at 3.00gm/liter.","PeriodicalId":14371,"journal":{"name":"International Research Journal of Pure and Applied Chemistry","volume":"2012 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73604811","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

Elimination Study of Anionic Dye by Co-products of the Phosphate Industry: Kinetics and Thermodynamic 磷酸盐工业副产物去除阴离子染料的研究:动力学和热力学

International Research Journal of Pure and Applied Chemistry Pub Date : 2021-12-30 DOI: 10.9734/irjpac/2021/v22i1230449

M. Mehnaoui, M. Hidouri, Khaled Boughzalaa

{"title":"Elimination Study of Anionic Dye by Co-products of the Phosphate Industry: Kinetics and Thermodynamic","authors":"M. Mehnaoui, M. Hidouri, Khaled Boughzalaa","doi":"10.9734/irjpac/2021/v22i1230449","DOIUrl":"https://doi.org/10.9734/irjpac/2021/v22i1230449","url":null,"abstract":"Water is essential for all living things however its pain has become serious. Many industrial activities cause pollution by the release of polluting byproducts. Wastewater treatment is hence necessary. In this context, the wastewater of the textile industry containing Red Acid 52 was treated by the solid waste of the washed natural phosphate byproduct. Natural phosphate was also studied. The solid materials were first characterized by chemical analysis, Fourier Transform Infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The phosphate materials were after that, tested in the adsorption of the Red Acid 52. The experimental data indicated that the phosphate waste rock allowed the removal of Red Acid 52. Its maximum retention capacity attained 18.4 mg.g-1. Calcinations of materials inhibit the removal capacity found reduced by 60 to 70%. The adsorption kinetics of the Red Acid 52 on the material is well described by the pseudo-second-order model while the adsorption isotherms are identified by the Langmuir model. Hereafter, the thermodynamic study revealed that the adsorption process is spontaneous and exothermic. The obtained results indicated that the adsorbent has the best adsorption capacity of 18.4 mg.g-1. The removal quantity decreases when the adsorbent is calcined. The kinetics model most appropriate is the pseudo-second-order model. As for the adsorption isotherms, they are well described by the Langmuir model. The temperature effect indicates a decrease in the adsorbed amount with the increase of temperature. Furthermore, the adsorption is spontaneous and exothermic and the reaction is physical in nature for both materials.","PeriodicalId":14371,"journal":{"name":"International Research Journal of Pure and Applied Chemistry","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84428958","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

Effect of Tillage and Weed Management Practices on Physico-chemical Properties of Soil and Yield of Soybean in Inceptisols 耕作和杂草管理措施对黄豆土壤理化性质及产量的影响

International Research Journal of Pure and Applied Chemistry Pub Date : 2021-12-30 DOI: 10.9734/irjpac/2021/v22i1230452

N. Konde, S. Ingle, Nilam Kanase, J. Shirankar, S. Bhoyar, P. Kadu, J. Deshmukh, D. Mali, S. Jadhao

{"title":"Effect of Tillage and Weed Management Practices on Physico-chemical Properties of Soil and Yield of Soybean in Inceptisols","authors":"N. Konde, S. Ingle, Nilam Kanase, J. Shirankar, S. Bhoyar, P. Kadu, J. Deshmukh, D. Mali, S. Jadhao","doi":"10.9734/irjpac/2021/v22i1230452","DOIUrl":"https://doi.org/10.9734/irjpac/2021/v22i1230452","url":null,"abstract":"An investigation was carried during the year 2018-19 to study the“ Effect of tillage and weed management practices on physico-chemical properties of soil and yield of soybean in Inceptisols” at Research Farm of All India Coordinated Research Project (AICRP) on Weed Management, Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The study has focused the integrated effect of tillage and weed management practices on physico chemical properties of soil, yield of soybean and availability of nutrients. Five weed control practices were superimposed in four strips of different tillage practices in strip plot with three replications. The tillage operations consist of conventional tillage, reduced tillage, minimum tillage and zero tillage, however weed management practices includes application of pre emergence weedicide (diclosulam), post emergence weedicides (propaquizafop + imazethapyr.), integration of pre emergence and post emergence weedicide, hand weeding and weedy check. The soils of experimental plot was alkaline in reaction and low to medium in organic carbon. The available nitrogen and phosphorus was low and potassium was high to very high. Based on the observations noted, the bulk density of soil was significantly influenced due to tillage and weed management practices. The highest bulk density was noted with zero tillage (1.46 Mg m-3) followed by reduced tillage (1.45 Mg m-3). The highest Mean Weight Diameter (0.75 mm) was enumerated with minimum tillage and hand weeding management practice (0.75 mm). While, the interaction of tillage and weed management practices showed non-significant results in respect of soil physical properties. The highest available of nitrogen (207.33 kg ha-1), phosphorus (20.07 kg ha-1) and potassium (346.1 kg ha-1) were recorded with minimum tillage and with hand weeding practice.","PeriodicalId":14371,"journal":{"name":"International Research Journal of Pure and Applied Chemistry","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78563449","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