Journal of modern chemistry & chemical technology (vol5, issue1) by STM Journals Publication

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ISSN: 2321-5208

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Dr. Subhendu Sekhar Bag Indian Institute of Technology Guwahati, India.

Dr. Sunil K. Sharma Chief Scientist - Fire Research, CSIR-CBRI, Roorkee (UK) Professor, Academy of Scientific & Innovative Research, New Delhi, India.

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STM JOURNALS

I take the privilege to present the hard copy compilation for the [Volume 5 Issue (1)] of Journal of Modern Chemistry & Chemical Technology (JoMCCT). The intension of JoMCCT is to create an atmosphere that stimulates creativeness, research and growth in the area of Modern Chemistry & Chemical Technology. The development and growth of the mankind is the consequence of brilliant Research done by eminent Scientists and Engineers in every field. JoMCCT provides an outlet for Research findings and reviews in areas of Modern Chemistry & Chemical Technology found to be relevant for National and International recent developments & research initiative. The aim and scope of the Journal is to provide an academic medium and an important reference for the advancement and dissemination of Research results that support high level learning, teaching and research in the domain of Modern Chemistry & Chemical Technology. Finally, I express my sincere gratitude and thanks to our Editorial/ Reviewer board and Authors for their continued support and invaluable contributions and suggestions in the form of authoring writeups/ reviewing and providing constructive comments for the advancement of the journals. With regards to their due continuous support and co-operation, we have been able to publish quality Research/Reviews findings for our customers base. I hope you will enjoy reading this issue and we welcome your feedback on any aspect of the Journal.

Dr. Archana Mehrotra Director STM Journals

Journal of Modern Chemistry & Chemical Technology

Contents

1. Removal of CO2 using Aqueous Blends of Amines by Chemical Absorption Method: Modeling Shubham Singh, Soham Roy Chowdhury, Bindushree R P, Kinnera P, Sainath K

2. Spectral, Thermal, Electrochemical and Biological Studies of Co(II), Ni(II), Cu(II) and Zn(II) Complexes Derived from 4-(3-bromo-4-hydroxy-5-methoxybenzylideneamino)-3-mercapto-6-methyl-5-oxo-1,2,4triazine Kiran Singh, Sunita Raparia, Chetan Sharma

3. Synthesis and Characterization of Composites of Beryllia and Lithium-titanate Produced by Solid State Route B N Rath, S J Ghanwat, R. Mishra, C. Danani, D Sathiyamoorthy, S Anantharaman

4. Thermogravimetric and Crystallinity Studies of ER/PS Blends Vijayakumar PC, R Jeevan Kumar, Rajashekhara KM, Tom Cherian, Jobish Johns

5. Tracer Application in Study of Reaction Kinetics using Duolite ARA-9366B and Duolite A-638 P. U. Singare

Journal of Modern Chemistry & Chemical Technology ISSN: 2321-5208 Volume 5, Issue 1 www.stmjournals.com

Removal of CO2 using Aqueous Blends of Amines by Chemical Absorption Method: Modeling Shubham Singh, Soham Roy Chowdhury, Bindushree R P, Kinnera P, Sainath K* Department of Chemical Engineering, BMS College of Engineering, # 1908, Bull Temple Road Basavanagudi, Bangalore, India Abstract Carbon capture from point source emissions has been recognized as one of the several strategies necessary for mitigating unfettered release of greenhouse gases (GHG’s) into the atmosphere to prevent global warming. To keep the GHG’s at manageable level, large decrease of CO2 should take place through capture technologies like chemical absorption. Alkanolamines such as monoethanolamine (MEA), diethanolamine (DEA), and N-methyldiethanolamine (MDEA) have been used for gas treating at industries. There has been a growing interest today for gas treating by using blended amines. The mixed amine systems, which combine the higher equilibrium capacity of the tertiary amine with the higher reaction rate of the primary or secondary amine, can bring about considerable improvement in gas absorption like MDEA/MEA and MDEA/DEA are compared based on the reaction kinetics. Modeling is applied for absorption rate constants for the above blended amines using MATLAB. Keywords: CO2, chemical absorption, blended amines, rate kinetics

Journal of Modern Chemistry & Chemical Technology ISSN: 2321-5208 Volume 5, Issue 1 www.stmjournals.com

Spectral, Thermal, Electrochemical and Biological Studies of Co(II), Ni(II), Cu(II) and Zn(II) Complexes Derived from 4-(3-bromo-4-hydroxy-5-methoxybenzylideneamino)-3mercapto-6-methyl-5-oxo-1,2,4-triazine Kiran Singh1*, Sunita Raparia1, Chetan Sharma2 1

Department of Chemistry, Kurukshetra University, Kurukshetra-136119, India Department of Microbiology, Kurukshetra University, Kurukshetra-136119, India

Abstract The Schiff base4-(3-bromo-4-hydroxy-5-methoxybenzylideneamino)-3-mercapto-6methyl-5-oxo-1,2,4-triazine and its Co(II), Ni(II), Cu(II) and Zn(II) complexes have been synthesized and characterized by IR, NMR, electronic, ESR, fluorescence, thermal, magnetic moment and electrochemical studies. IR and thermal data support the presence of coordinated water in the metal complexes. The electronic spectral and magnetic moment measurements indicate octahedral geometry for Co(II), Ni(II) and Zn(II) complexes and square planar for Cu(II) complexes. Biological studies of the ligand and its metal complexes have been carried out in vitro against Gram-positive (Staphylococcus aureus, Bacillus subtilis), Gram-negative (Escherichia coli) bacteria and fungi (Aspergillus niger, Aspergillus flavus). The results show increased antibacterial and antifungal activity of the metal complexes as compared to the ligand.

Keywords: Synthesis, 1,2,4-triazine, Schiff base, antimicrobial activity, metal complexes

Journal of Modern Chemistry & Chemical Technology ISSN: 2321-5208 Volume 5, Issue 1 www.stmjournals.com

Synthesis and Characterization of Composites of Beryllia and Lithium-titanate Produced by Solid State Route B N Rath1*, S J Ghanwat2, R. Mishra3, C. Danani4, D Sathiyamoorthy5, S Anantharaman1 1

Post Irradiation Examination Division, RLG, BARC, Trombay, Mumbai-400085 2 PMD, BARC, Vashi Complex, Navi Mumbai, India, 400705 3 ChD, BARC, Trombay, Mumbai-400085 4 Institute for plasma research, Gandhinagar, India-382428 5 Ex-head, PMD, BARC, Vashi Complex, Navi Mumbai, India, 400705

Abstract Beryllium oxide (BeO) is proposed to be used as a constituent for lithium titanate (Li2TiO3) based composite material for neutron multiplication and breeding in International Thermonuclear Experimental Reactor (ITER) for its high thermal conductivity, low neutron absorption cross-section and high neutron reflection cross section. In the present investigation, we report the synthesis of single phase BeO-Li2TiO3 composites with BeO to Li2TiO3 (produced through solid state route) in volume ratios of 80:20, 75:25, 65:35 and 55:45. The samples have been characterized by X-ray diffraction and scanning electron microscopy. The values of thermal conductivity for BeO-Li2TiO3 composites with BeO to Li2TiO3 in volume ratios of 80:20, 75:25, 65:35 and 55:45 have been obtained by thermal diffusivity measurements and specific heat measurements. The electrical conductivity of the composites has been obtained from impedance measurements. The mechanical properties of the materials have been evaluated. From the present investigation, it could be concluded that it is possible to achieve tritium breeding ratio (TBR) more than 1.1 by optimizing the BeO and Li2TiO3 ratio with better mechanical, thermal and electrical properties compared to the use of lithium titanate alone in the fusion reactor with metallic Be.

Keywords: Beryllium oxide, lithium titanate, ITER, Tritium breeding ratio, neutron multiplier, neutron breeder

Journal of Modern Chemistry & Chemical Technology ISSN: 2321-5208 Volume 5, Issue 1 www.stmjournals.com

Thermogravimetric and Crystallinity Studies of ER/PS Blends Vijayakumar PC1, 2, R Jeevan Kumar3, Rajashekhara KM4, Tom Cherian5, Jobish Johns1* 1

Rajarajeswari College of Engineering, Bangalore, India Jawaharlal Nehru Technical University, Ananthapur, AP, India 3 SK University, Ananthapur, AP, India 4 SJCIT, Chikballapur, Bangalore, India 5 Christ College, Irinjalakuda, Kerala, India

Abstract Thermoplastic elastomeric blends of polystyrene (PS) and exudated resin (ER) were prepared by solution casting technique. The decomposition behavior of these blends was studied by thermogravimetric analysis. The effect of blend ratio and cross linking on the thermal behavior of ER/PS blend system was studied. An enhancement in thermal stability was observed by the addition of ER into polystyrene. The activation energy of degradation was calculated by using Horowitz-Metzger equation. X-ray diffraction technique was employed to study the crystalline nature of the blend system. A decrease in crystallinity was found for the blends with increase in ER content.

Keywords: Thermogravimetry, polymer blend, polystyrene, crystallinity

Journal of Modern Chemistry & Chemical Technology ISSN: 2321-5208 Volume 5, Issue 1 www.stmjournals.com

Tracer Application in Study of Reaction Kinetics using Duolite ARA-9366B and Duolite A-638 P. U. Singare* Bhavan’s College, Andheri (West), Mumbai 400058, India Abstract

Radiotracer isotopes 131I and 82Br were used to study the iodide and bromide ion-isotopic exchange reactions taking place in two anion exchange resins Duolite ARA-9366B (nuclear grade) and Duolite A-638 (non-nuclear grade) under different operational parameters like temperature and ionic concentration of exchanging medium. The results of present investigation indicate an existence of strong positive linear co-relationship between amount of ions exchanged and concentration of ionic solution; while existence of strong negative co-relationship between amounts of ions exchanged and temperature of exchanging medium. It was observed that during iodide ion-isotopic exchange reaction under identical experimental conditions of 40.0 °C, 1.000 g of ion exchange resins and 0.003 M labeled iodide ion solution, the values of specific reaction rate (min−1), amount of iodide ion exchanged (mmol), initial rate of iodide ion exchange (mmol/min) and log Kd were 0.185, 0.417, 0.077 and 10.2 respectively for Duolite ARA-9366B resin, which was higher than 0.118, 0.338, 0.040 and 6.4 respectively for Duolite A-638 resins. It was observed that using Duolite ARA-9366B resins, at a constant temperature of 40.0 °C, as the concentration of labeled iodide ion solution increases from 0.001–0.004 M, the percentage of iodide ions exchanged increases from 51.70–57.5%. While using Duolite A-638 resins under identical experimental conditions, the percentage of iodide ions exchanged increases from 43.20–45.80%. The identical trend was observed for the two resins during bromide ion-isotopic exchange reaction. The overall results indicate superior performance of Duolite ARA-9366B resins over Duolite A-638 resins under identical operational parameters.

Keywords: Radiotracer isotopes, 131I; 82Br, non-destructive technique, ion-isotopic exchange reactions, radio analytical technique, anion exchange resins, nuclear grade resin, Duolite ARA-9366B, Duolite A-638