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International Journal of Applied Chemistry最新文献

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Determination of rate of reaction and rate constant of the hydrolysis of ester (ethyl acetate) with alkali(sodium hydroxide) 碱(氢氧化钠)水解酯(乙酸乙酯)反应速率和速率常数的测定
International Journal of Applied Chemistry Pub Date : 2019-09-25 DOI: 10.14445/23939133/ijac-v6i3p104
F. Jabeen, Qazi Inamur Rahman, S. Zafar
{"title":"Determination of rate of reaction and rate constant of the hydrolysis of ester (ethyl acetate) with alkali(sodium hydroxide)","authors":"F. Jabeen, Qazi Inamur Rahman, S. Zafar","doi":"10.14445/23939133/ijac-v6i3p104","DOIUrl":"https://doi.org/10.14445/23939133/ijac-v6i3p104","url":null,"abstract":"The rate of reaction is defined as the change in the number of molecules of reacting species per unit volume per unit time. Hydrolysis is the decomposition reaction involving breaking of a bond and the addition of water elements. In this hydrolysis of ethyl acetate with sodium hydroxide, hydrochloric acid was used as catalyst to accelerate the reaction mixture. 1ml and 2ml of ethyl acetate was injected separately into the 500 ml conical flask which contains 0.05N of sodium hydroxide and thoroughly mixed. At regular time interval, 0, 10, 20, 30, 40, and 90 minutes, 25ml of each of the samples were withdrawn into a 250 ml conical flask containing 0.05N hydrochloric acid, and titrated against 0.05N sodium hydroxide solution using phenolphthalein as an indicator. From the value of sodium hydroxide, the hydrolysis involving the 1ml ethyl acetate was faster than that of the 2ml ethyl acetate, indicating that the higher the concentration the faster the rate of reaction. The rate constant after calculation from the graphs was approximately 0.003mincmfor the 1ml and 2ml of ethyl acetate, signifying that while the rate of reaction is concentration dependent but the rate constant is notconcentration dependent.","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83844594","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 of the Zinc Borate Modified Expanded Graphite and Its Influence on Polyurethane Foam Properties 硼酸锌改性膨胀石墨的合成及其对聚氨酯泡沫性能的影响
International Journal of Applied Chemistry Pub Date : 2019-05-25 DOI: 10.14445/23939133/ijac-v6i2p106
Gang Bian, Jianing Liu, X. Pang
{"title":"Synthesis of the Zinc Borate Modified Expanded Graphite and Its Influence on Polyurethane Foam Properties","authors":"Gang Bian, Jianing Liu, X. Pang","doi":"10.14445/23939133/ijac-v6i2p106","DOIUrl":"https://doi.org/10.14445/23939133/ijac-v6i2p106","url":null,"abstract":"","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"139 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84137651","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
Extraction And Stripping Of MethyleneBlue From Industrial Wastewater By Liquid-Liquid Extraction 液-液萃取法萃取和剥离工业废水中的亚甲基蓝
International Journal of Applied Chemistry Pub Date : 2019-05-25 DOI: 10.14445/23939133/ijac-v6i2p103
P. Swathi, G. Muthuraman
{"title":"Extraction And Stripping Of MethyleneBlue From Industrial Wastewater By Liquid-Liquid Extraction","authors":"P. Swathi, G. Muthuraman","doi":"10.14445/23939133/ijac-v6i2p103","DOIUrl":"https://doi.org/10.14445/23939133/ijac-v6i2p103","url":null,"abstract":"","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73859986","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
Application of Silica-Chromium Oxide Composite for the Sorption of Toxic Metals from Aqueous Stream 二氧化硅-氧化铬复合材料在水中有毒金属吸附中的应用
International Journal of Applied Chemistry Pub Date : 2019-05-25 DOI: 10.14445/23939133/ijac-v6i2p101
A. Sengupta, N. K. Gupta, B. Rajeswari, M KadamR.
{"title":"Application of Silica-Chromium Oxide Composite for the Sorption of Toxic Metals from Aqueous Stream","authors":"A. Sengupta, N. K. Gupta, B. Rajeswari, M KadamR.","doi":"10.14445/23939133/ijac-v6i2p101","DOIUrl":"https://doi.org/10.14445/23939133/ijac-v6i2p101","url":null,"abstract":"","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73076922","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
Improving Extraction Processes Of Crustacean Chitin Using Solid State Analytical Techniques 固态分析技术对甲壳类动物甲壳素提取工艺的改进
International Journal of Applied Chemistry Pub Date : 2019-05-25 DOI: 10.14445/23939133/IJAC-V6I2P104
Fionn O'Fearghail, M. Giltrap, Christine O'Connor, P. Behan
{"title":"Improving Extraction Processes Of Crustacean Chitin Using Solid State Analytical Techniques","authors":"Fionn O'Fearghail, M. Giltrap, Christine O'Connor, P. Behan","doi":"10.14445/23939133/IJAC-V6I2P104","DOIUrl":"https://doi.org/10.14445/23939133/IJAC-V6I2P104","url":null,"abstract":"Solid state analytical techniques are becoming more widely used for the analysis of a range of organic products which demonstrate very poor solubility in both common organic and polar solvents and as such cannot be accurately characterised using solution based techniques. Primarily used as a secondary technique for qualitative analysis of insoluble intermediates and products in organic synthesis, C CP-MAS NMR can be utilised in tandem with a targeted extraction and clean up procedure for accurate quantitative analysis of insoluble bio-molecules of interest. Here solid state C CP-MAS NMR is utilised as the primary analytical technique in the characterisation of crustacean sourced chitin whereby Cancer pagurus crab shell chitin and Pandalus borealis shrimp shell chitin are shown to have a degree of acetylation greater than 90%. FTIR spectroscopy, Raman spectroscopy and DSC provide secondary structural, molecular and thermal analysis of the raw materials and extracted chitin.","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"101 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83881369","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: 3
Atmospheric Concentration of Trace Metals in PM2.5 and Their Bioavailability in Different Areas of Gwalior Region 果辽尔地区不同地区大气PM2.5中微量金属浓度及其生物利用度
International Journal of Applied Chemistry Pub Date : 2019-05-25 DOI: 10.14445/23939133/ijac-v6i2p107
P. Varshney, Ravi Bansal, Rahul Tiwari, Halve A. K, A. Taneja
{"title":"Atmospheric Concentration of Trace Metals in PM2.5 and Their Bioavailability in Different Areas of Gwalior Region","authors":"P. Varshney, Ravi Bansal, Rahul Tiwari, Halve A. K, A. Taneja","doi":"10.14445/23939133/ijac-v6i2p107","DOIUrl":"https://doi.org/10.14445/23939133/ijac-v6i2p107","url":null,"abstract":"The contemporary study aims to explore the concentration of particulate matter (PM), sources and their inherent health risk of exposure in different urban and rural areas of Gwalior, India. In the month of June and July in 2017, with the help of fine particulate sampler, the fine particles (PM2.5) were collected on polytetrafluoroethylene (PTFE) filter paper. The average mass concentration of PM2.5 was 63.02±27.71μg/m (urban) and 73.07±32.17 μg/m (rural). The metal concentration of PM2.5 was characterized using atomic absorption spectroscopy (AAS). Results publicised that mostly the toxic metals were primarilypresent in bioavailable fractions. The estimated bioavailable fractions of chromium and lead were 86.62 μg/m and 28.96 μg/m respectively shows the incremental cancer risk, indicating the potential impact on residents of urban and rural areas.","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75762281","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: 2
Optimal Decolorization Efficiency of Textile Dye via a Nano-TiO2/Bamboo-Charcoal Photocatalytic Process 纳米tio2 /竹炭光催化对纺织染料的最佳脱色效果研究
International Journal of Applied Chemistry Pub Date : 2019-05-25 DOI: 10.14445/23939133/ijac-v6i2p102
M. Yen
{"title":"Optimal Decolorization Efficiency of Textile Dye via a Nano-TiO2/Bamboo-Charcoal Photocatalytic Process","authors":"M. Yen","doi":"10.14445/23939133/ijac-v6i2p102","DOIUrl":"https://doi.org/10.14445/23939133/ijac-v6i2p102","url":null,"abstract":"","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81930847","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
GC-MS Investigation of Composition of Essential Oils, Extracted from Mentha Piperita and Pelargonium Roseum 薄荷和天竺葵精油成分的GC-MS分析
International Journal of Applied Chemistry Pub Date : 2019-05-25 DOI: 10.14445/23939133/ijac-v6i2p105
Mukhamadiyev A.N, Khalilov K.F, N. B.K., Muhamadiev N.Q
{"title":"GC-MS Investigation of Composition of Essential Oils, Extracted from Mentha Piperita and Pelargonium Roseum","authors":"Mukhamadiyev A.N, Khalilov K.F, N. B.K., Muhamadiev N.Q","doi":"10.14445/23939133/ijac-v6i2p105","DOIUrl":"https://doi.org/10.14445/23939133/ijac-v6i2p105","url":null,"abstract":"","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81846129","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: 1
Antibacterial Effects and Synthesized New Derivatives of 4-hydroxy-chromen-2-one 4-羟基铬-2-酮的抗菌作用及新衍生物的合成
International Journal of Applied Chemistry Pub Date : 2019-04-15 DOI: 10.11648/J.AJHC.20190501.13
A. Behrami, Florent Dobroshi
{"title":"Antibacterial Effects and Synthesized New Derivatives of 4-hydroxy-chromen-2-one","authors":"A. Behrami, Florent Dobroshi","doi":"10.11648/J.AJHC.20190501.13","DOIUrl":"https://doi.org/10.11648/J.AJHC.20190501.13","url":null,"abstract":"In present paper, we report the organic syntheses of three compounds exactly 4-hydroxy-chromen-2-one and describe the results of antibacterial activity of purified compounds. Compounds 4-(4-Methoxy-phenylamino)-2-oxo-2H-chromene-3-sulfonyl chloride (a). N-{3-[Diethoxy-(2-hydroxy-phenyl)-methyl]-2-oxo-2H-chromen-4-yl}-acetamide (b), 4-(6-Nitro-benzothiazol-2-ylamino)-2-oxo-2H-chromene-3-carbaldehyde (c), have been synthesized and characterized using melting points, IR spectra, 1H-NMR and 13C-NMR spectra. Our research goal is synthesis novel organic compounds which prove high level of antibacterial activity. The antibacterial activity of synthesized compounds and streptomycin and cefalexine at concentrations of 2mg/ml, 3mg/ml and 5mg/ml, have been evaluated against three strains of bacterial culture; Staphylococcus aureus, E. coli and Bacillus cereus. The compounds show bacteriostatic and bactericidal activity in high level and also synthetized compounds has been characterized using advanced instrumental methods of analysis.","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78375585","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
Evaluation of Allelopathic and Antifungal Activity of Selected Seaweeds 几种海藻化感作用和抗真菌活性的评价
International Journal of Applied Chemistry Pub Date : 2019-02-25 DOI: 10.14445/23939133/IJAC-V6I1P109
A.B.Fathima Rifana
{"title":"Evaluation of Allelopathic and Antifungal Activity of Selected Seaweeds","authors":"A.B.Fathima Rifana","doi":"10.14445/23939133/IJAC-V6I1P109","DOIUrl":"https://doi.org/10.14445/23939133/IJAC-V6I1P109","url":null,"abstract":"","PeriodicalId":13860,"journal":{"name":"International Journal of Applied Chemistry","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88966723","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
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