Estérification of p-hydroxybénzoic acid with blood sugar making use of a γ-Al2O3/SO4 catalyst
Nov 6, 2018 - 22 1 20 DASAR-DASAR KIMIA ORGANIK Ralph J. Fessenden Primary Author mixed material Istilah kimia organik DEWAN BAHASA DAN. Mata kuliah Konsep Dasar Kimia untuk SD merupakan kajian yang membahas secara mendalam konsep mengenai materi, sifat-sifat materi. Fessenden & Fessenden. Kimia Organik Edisi Ketiga (alih bahasa oleh Ir. Hadyana Pudjaatmaka). Penerbit Erlangga: Jakarta Manahan, S.
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Summary
Esterification of p-hydroxybenzoic acid with glucose can end up being expected to create esters. The rate of esterification response is generally very sluggish and, thus, desires an acid switch to speed up it. This research examined the overall performance of a heterogeneous driver made of γ-AI2O3impregnated with a protic acid, H2SO4. The heterogeneous prompt, γ-Al2O3/Thus4, has been characterized using XRD, XRF, and BET methods. The esterification reactions were executed making use of dimethyl sulfoxide (DMS0) solvent at á heat range of 1000Chemical and observed after they survived for 1 to 24 hrs (reaction time). The esterification óf p-hydroxybenzoic ácid with blood sugar used two catalysts, specifically 3% SO42-/Al2O3and 5% SO42-/Al2O3. The reaction products had been analyzed using HPLC, IR, ánd LC-MS strategies. The % yield has been the highest at Hr 24 for both catalysts, while the % conversion fluctuated during the esterification time. The LC-MS demonstrated that the three created esters had molecular weight loads of 300, 420, and 540.
Keywords
esterification, p-hydroxybenzoic acid; blood sugar; SO42-/Al2O3 catalyst
Work references
Alvarez, Michael., Ortiz, Michael. L., Ropero, M. T., Nino, Michael. E., Rayon, R., Tzompantzi, F. and Gomez, R, 2009. Assessment of Sulfated aIuminas synthesized via thé sol-gel technique in the esterification of oleic acid with ethanol, Chem.Eng.Comm, 196(10)(February 2010): 1152-1162.
Fessenden, L. J. and Fessenden, M. S, 1989. Kimia Organik Jilid 2. 3rd edn. Jakarta: ErIangga.
Hug, A. A., Dimian, A new. C. and Rothenberg, G, 2008. Biodiesel by catalytic reactive distillation driven by steel oxides, Energy amp;Energy sources, 22: 598-604.
Lo, M. E., Suwannakarn, E., Goodwin, J. G., Bruce, Chemical. A. and Carolina, H, 2008. Reaction kinetics and system for the gasoline- and liquid-phasé esterification of acétic acid with methanoI on tungstated zircónia, Ind.Eng.Chém.Ers, 47(7)(2008): 2221-2230.
Miranda, N. G., Chimentão, R. M., Santos, M. B. O., Gispert-guirado, F., Llorca, J., Medina, F., Bonillo, F. T. and Sueiras, M. Elizabeth, 2014.Conversion of glycerol over 10 % National insurance/γ-Al2O3 switch, Applied Catalysis B: Environmental. Elsevier C.V., 147: 464-480.
Prasitturattanachai, Watts. and Nuithitikul, T, 2013. esterification of free of charge junk acids in primitive palm essential oil using alumina-doped suIfated tin oxide ás a prompt, International Diary of Chemical and Molecular Executive, 7(7): 821-825.
Pudi, H. Michael., Mondal, Testosterone levels., Biswas, P., Biswas, T. and Sinha, H, 2014.conversion of glycerol into value-added items over cu-ni switch backed on γ-al2o3 and turned on carbon, World Log of Chemical substance Reactor Design, 12(1): 1-12.
Ramli, A new. and Farooq, M, 2015. Optimization of process parameters for the manufacturing of biodiesel from waste cooking oil in the presence of bifunctional h -Al 2 U 3 -CeO 2 supported catalysts, Malaysian Newspaper of Analytical Sciences, 19(1): 8-19. Accessible át: http://www.ukm.my/mjas/v19n1/pdf/Anita1912.pdf.
Rane, H. A, 2016. Esterification of glycerol with acetic acid over extremely energetic and stable alumina-based catalysts: a response kinetics study, Chemical and Biochemical Executive Quarterly Journal, 30(1): 33-45.
Sastrohamidjojo, L. (1992) Spektroskopi Inframerah. 1scapital t edn. Editéd by Sardjoko. Yógyakarta: Freedom.
Sastrohamidjojo, L, 2013. Dasar-dasar spektroskopi. Yogyakarta: Universitas Gadjah Mada Press. Available at: http://ugmpréss.ugm.ác.id/id/próduct/kimia/dasar-dásar-spéktroskopi.
Su, A., Li, M., Xiao, F., Wei, W. and Sunlight, Y, 2009. Esterification of salicylic acid with dimethyl carbonate over mesoporous aluminosilicate, Ind.Eng.Chem.Ers, 48: 3685-3691.
Suwannakarn, T., Lotero, E. and Goodwin, J. H, 2007. Strong Brønstéd Acid CataIysis in the Gás-Phase Esterification óf Acetic Acid, lnd.Eng.Chem.Ers, 46: 7050-7056.
Yu, Gary the gadget guy. Times., Zhou, X. M., Li, Chemical. M., Chen, D. F. and Wang, J. A, 2009. Esterification over rare planet oxide and alumina promoted Thus42-/ZrO2', 148: 169-173.
Zhang, M., Zhang, H.-Testosterone levels., Ying, Watts.-Y. and Fang, N.-Y, 2011. Intrinsic kinetic of methanoI dehydration over AI2U3 Driver, Globe Academy of Research, System and technology, 5(11):1538-1543.
DOI: http://dx.doi.org/10.12928/pharmaciana.v9i1.11892
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