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American Journal of Chemical Research

American Journal of Chemical Research, Most Read

Synthesis of Waste Frying Oil and Trimethylolpropane Based Lubricant Basestocks

Research Article of American Journal of Chemical Research Synthesis of Waste Frying Oil and Trimethylolpropane Based Lubricant Basestocks Norliza Julmohammad1,2*, Jumat Salimon3 1Faculty of Food Science & Nutrition, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah. 2,3School of Chemical Sciences & Food Technology, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia. Research on waste frying oil based lubricant base stocks production and trimethylolpropane (TMP) was investigated. Quality parameters were tested for the waste frying oil. The hydrolysis process was conducted to extract the free fatty acid from waste frying oil. TMP ester was produced via reaction between free fatty acids of waste frying oil and TMP at 130-140°C, for 5 hours with acid-catalyzed condition. Modification of TMP ester by epoxidation reaction followed by ring-opening reaction using a medium branch chain alcohol; 2-ethylhexanol. The TMP ester was reacted with hydrogen peroxide and formic acid at 45-55°C for 2½ hours during epoxidation process. Epoxidized TMP ester was reacted with 2-ethylhexanol in mol ratio of 1:2 to produce ether ester TMP. Concentrated sulphuric acid was used as a catalyst during ring opening and esterification processes. Ether ester TMP functional groups and chemical structure were identified using FTIR and NMR, respectively. Confirmation with FTIR has indicated sharp peak at 1742 cm-¹, proved the existence of ester group which confirmed the TMP ester formation during esterification and broad peak of 3456 cm-1 during ring opening indicated the formation of ether ester TMP. In ¹H NMR analysis, the signal of methylene proton in which the carbon attached to ether esters TMP existed at 4.0-4.1 ppm and for 13C NMR, the carbonyl ester signals existed in the range of 174.1 ppm. Several analyses were conducted on the ether ester TMP base stock such as hydroxyl value, viscosity value, pour point ...
American Journal of Chemical Research, Most Read

Synthesis, Characterization and catalytic activity of Palladium-Based Metallodendrimer with Triazine

Research Article of American Journal of Chemical Research Synthesis, Characterization and catalytic activity of Palladium-Based Metallodendrimer with Triazine Md. Sayedul Islam1* and Md. Wahab Khan2 1,2Department of Chemistry, Faculty of Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka-1000, Bangladesh A novel Pd-based metallodendrimer has been directly prepared by the reaction of substituted triazine with substituted benzoyl chloride in good yields using (Ph3P)2PdCl2 and DMF at 70 oC. This procedure avoids the use of high temperature and severe reaction conditions. The surface morphology like as entangled nanofibers from SEM image and the presence of Palladium ions of the compound from EDX analysis were obtained in addition TG and DSC showed the good thermal stability of the compound. This white solid compound was found to be an effective homogeneous catalyst for the synthesis of ynones in where the synthetic route was copper and phosphine ligand-free. Keywords: Triazine, substituted benzoyl chloride, Ynones, Dendrimers, Metallodendrimers ...
American Journal of Chemical Research, Most Read

Chemo-Remediation of Crude Oil Polluted Soils Obtained from Recent Polluted Site in Oil Producing Environs in Rivers State Nigeria

Research Article of American Journal of Chemical Research Chemo-Remediation of Crude Oil Polluted Soils Obtained from Recent Polluted Site in Oil Producing Environs in Rivers State Nigeria Iwu Irenus Chinonye, Onu Uchenna Lynda, Amarachi Nkwoada, Onwumere Fidelis Department of Chemistry, Federal University of Technology Owerri Nigeria The chemo- remediation of crude oil polluted soils from recent pollution sites in oil producing environs in River state was carried out by both in vivo and in vitro methods using macro-soil nutrients ( Nitrate, Phosphate and Potassium) as index for remediation. The soil samples were labeled A, B, C, D1 to D6, sample A was obtained from pollution free site used as a control. Sample C was crude oil polluted soil not treated with surfactant, sample B was crude oil polluted soil leached with surfactant and not mineralized. Samples D1-D6 were polluted soil samples, leached with surfactant and mineralized with fertilizer. The samples were leached with linear alkyl benzene sulphonate (LABS) and later mineralized with Nitrate, Phosphate and Potassium (N.P.K) fertilizer and returned to the site of excavation to fallow for four months. The samples were later re-excavated and taken to the laboratory for analysis. Nitrate and phosphate contents were obtained with the aid of spectrum lab 725 UV visible spectrophotometer and potassium content was determined by use of a flame photometer. Results showed that sample A had nitrate concentration of 330ppm, sample B had concentration of 21ppm, sample C had a concentration of 54ppm while samples D-D6 had concentrations ranging from300ppm to 420ppm.Similarly, The phosphate concentrations were 68.50ppm, 17.00ppn, 28.00ppm and 48.80-136.40ppm for sample A, B, C.D1-D6 respectively. The potassium concentrations were not different as concentrations of 46ppm, 12ppm, 28ppm and 38ppm-64ppm was recorded for samples A, B, C, and D1-D6 respectively. These results revealed that crude oils not only renders soils ...
American Journal of Chemical Research, Most Read

ORGANODIPHOSPHINES IN PtP2X2 (X = Br or I) DERIVATIVES – STRUCTURAL ASPECTS

Review Article of American Journal of Chemical Research ORGANODIPHOSPHINES IN PtP2X2 (X = Br or I) DERIVATIVES – STRUCTURAL ASPECTS Milan Melník and Peter Mikuš Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, SK-832 32 Bratislava, Slovak Republic Toxicological an Antidoping Center, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, SK-832 32 Bratislava, Slovak Republic This review covers twenty eight monomeric Pt(η2-P2L)X2 (X = Br or I) derivatives. These complexes exist in cis- as well as trans-configurations from which the complexes with cis-configuration are more common. The organodiphosphines create wide varieties of the metallocyclic rings PNP, PC2P, PC3P, PNCNP and PC4OC4P. The mean values of Pt-L bond distances in cis-complexes are: 2.230 Å (P), 2.490 Å (Br) and 2.240 Å (P) 2.666Å (I), respectively. In the trans-complexes the values are 2.319 Å (P), 2.429 Å (Br) and 2.320 Å (P), 2.615 Å (I). The Pt-X bond distances in the cis- as well as in the trans-derivatives elongate with the covalent radius of the X atom. In addition in the cis-derivatives the Pt-X bond distances are longer than those in trans-derivatives, as a reason of higher trans-influence of P over the respective halogens. Some of the complexes are examples of distortion isomerism. Finally, the structural data of Pt(η2-P2L)X2 (X = Br or I) are compared with the values of Pt(η2-P2L)X2, complex and discussed. Keywords: Structure, Pt(η2-P2L)X2 (X = Br or I), distortion isomers ...

Dr Chunya Li
Professor, College of Chemistry and Materials Science, South Central University for Nationalities, Wuhan, Hubei, China

Dr Mohammad Hadi Dehghani
Professor, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences

Dr Mohamed Abdel Moneim Deyab
Physical Chemistry, Egyptian Petroleum Research Institute (EPRI) Cairo

Dr Boumediene Haddad
Associate professor (lecturer and Scientific Researcher), Department of Chemistry, Dr. Moulay Taher University

Dr. Anil Kumar
Assistant Professor, Department of Chemistry, Lovely Professional University

Dr. Prakash Prajapat
Assistant Professor, Department of Chemistry, Mehsana Urban Institute of Sciences, Ganpat University

Dr Swapnila Roy
30B/4,Mahendra Roy lane,Kolkata-46.

Dr Suban K Sahoo
Assistant Professor, Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT) Ichchanath

Dr Azeez Abdullah Barzinjy
Department of Physics, College of Education, Salahaddin University

Dr. Rasha Samir Mohamed Kamal
Professor researcher associated, Egyptian Petroleum Research Institute

Dr Sharma Kumari Kavita
Department of Chemistry, Idaho State University

Dr Qingchun Ge
Professor, College of Environment and Resources, Fuzhou University

Dr Mohamed A. Hassaan
Researcher, National Institute of Oceanography and Fisheries (NIOF)

Dr Hassan Karimi-Maleh
Department of Chemistry, Graduate University of Advanced Technology

Dr Hager Rabea Mohamed Ali
Researcher, Central lab department, Egyptian Petroleum Research Institute (EPRI)

Dr Ho Soon Min
Associate Professor, INTI International University

Dr Slimane MEROUANI
Associate professor, Department of Chemical Engineering, Faculty of Pharmaceutical Engineering Process,University of Constantine

Dr. Himanshu Kapoor
Assistant Professor, Department of Chemistry, Lovely Professional University

Dr. Harish Mudila
Asst. Professor, Dept. of Chemistry, Faculty of Technology and Sciences, Lovely Professional University

Dr. Praveen Kumar Sharma
Associate Professor, Department of Chemistry, Lovely Professional University

Dr. Keyur D. Bhatt
Head, Department of Chemistry, Mehsana Urban Institute of Science, Ganpat University

Dr Viraj H Mankar
Assistant Professor, Lovely Professional University

Dr. Marwa A. Fouad
Associate Professor, Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University

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American journal of chemical research

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