Journal of Modern Chemistry & Chemical Technology
Volume 2, Issue 2 (2011)
Published
Table of contents
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Comparative Study of Commercial Crystalline Waterproofing Admixtures on the Hydration Properties of Cement Pastes
Abstract: Three different types (K, P, and X) of crystalline water proofing admixture have been chosen to study the effect on Portland cement (OPC) pastes. Several studies such as water consistency, setting time, water percolation, heat evolution, differential thermal analysis (DTA), compressive strength and expansion in corrosive atmosphere for the OPC with admixtures in it were performed. Morphology studies of OPC with the admixtures were also carried out. Results indicated better …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 2, Issue 2, 2011 Read article
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Synthesis and Biological Screening of Some New3,5-Disubstituted-2-Isoxazolines
Abstract: Series of novel 3,5-disubstituted-2-isoxazolines have been synthesized via 1,3-dipolarcycloaddition reactions. All the synthesised compounds were confirmed by spectroscopic methods evaluated for their antimicrobial activity and were compared with the standard drugs. The compounds demonstrated potent to weak antimicrobial activity.Keywords: Isoxazolines, antimicrobial activity, chloramine-T
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 2, Issue 2, 2011 Read article
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Study of Coke-oven Gas Desulphurization and Methods to Improve Sulphur Quality
Abstract: The coke-oven gas has high calorific value and can be used for the burning process. The coke-oven gas coming out from the coke-oven department contains impurities like Sulphur, Ammonia, Tar, and Naphthalene. Sulphur is the major impurity; it is very harmful and poisonous to the environment. So the removal of sulphur plays an important role in the purification of coke-oven gas. The sulphur extraction can be done by absorption using …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 2, Issue 2, 2011 Read article
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Temperature-Programmed Reduction Studies on Fe-promoted Pt/Al2O3 Bimetallic Catalysts
Abstract: Pt/Al2O3-based bimetallic catalysts were prepared using surface organometallic method (SOMC) to obtain catalysts with a nominal promoter to platinum surface atomic ratio of 1:2 and 1:1 (corresponding to typically 0.2–0.4 mass% of the promoting metals; here Fe). Temperature-programmed reduction (TPR) studies showed two distinct temperature regions of hydrogen uptake during reduction by the parent Pt/Al2O3 (5 mass%) and the Fe-promoted catalysts. The shift in peak maxima in the case of …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 2, Issue 2, 2011 Read article