Issue 2

Table of Contents , Vol 1, Issue 2

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Mohammad Asif. Antivral and antiparasitic activities of various substituted triazole derivatives: A mini review. Chemistry International 1(2) (2015) 71 -80

Abstract

The presence of three nitrogen hetero-atoms in five-membered ring systems defines an interesting class of compounds, the triazole. This may be of two types, the 1,2,3-triazoles and the 1,2,4-triazoles. Out of the two triazoles, 1,2,4-triazole have drawn great attention due to its wide variety of activities, low toxicities and good pharmacokinetic and pharmacodynamic profiles. Chemistry of triazoles and their fused heterocyclic derivatives has received considerable attention owing to their effective biological activities such as anti inflammatory, analeptic, sedatives, antianxiety, antimicrobial, antimycotic and other pharmacological and chemical properties. In this article, antiviral and antiparasitic activities of triazole derivatives are discussed. 

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Murtaza Sayed. Efficient removal of phenol from aqueous solution by the pulsed high-voltage discharge process in the presence of H2O2. Chemistry International 1(2) (2015) 81 -86

Abstract

This study investigates the phenol degradation by pulsed high-voltage discharge (PHVD). The effect of solution pH, temperature, treatment time and initial phenol concentration on phenol degradation were examined. The results showed that the phenol removal efficiency was increased with the rise of pH, temperature and treatment time. The phenol removal efficiency was 48%, 46%, 42% and 34%, respectively at 10, 40, 90 and 160 ppm phenol solutions. The phenol degradation rate was increased markedly when H2O2 was added into the solution. Almost complete phenol degradation (100%) was achieved when 20-40 mM of H2O2 was added into phenol solutions of 40, 90 and 180 ppm. 

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J. Bhuvana and G. Madhurambal. Effect of trytophan as dopant on potassium acid phthalate single crystals. Chemistry International 1(2) (2015) 87-91

Abstract

Optically transparent single crystals of potassium acid phthalate (KAP, 0.5 g) 0.05 g and 0.1 g (1 and 2 mol %) trytophan were grown in aqueous solution by slow evaporation technique at room temperature. Single crystal X- ray diffraction analysis confirmed the changes in the lattice parameters of the doped crystals. The presence of functional groups in the crystal lattice has been determined qualitatively by FTIR analysis. Optical absorption studies revealed that the doped crystals possess very low absorption in the entire visible region. The dielectric constant has been studied as a function of frequency for the doped crystals. The thermal stability was evaluated by TG-DSC analysis.

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Naeema Kousar, Saqib Ali, Saira Shahzadi, Lala Rukh, Sadaf Ramzan, Muhammad Shahid, Saroj K. Sharma and Kushal Qanungo. Synthesis, characterization and antimicrobial activities of organotin(IV) complexes with ethylthioglycolate. Chemistry International 1(2) (2015) 92-98

Abstract

A series of organotin(IV) complexes have been synthesized by reacting ethylthioglycolate with di- and triorganotin halides in 1:1 M/L ratio in methanol under stirring conditions. The newly synthesized complexes have been characterized by elemental analysis, IR and NMR spectroscopy (1H, 13C). IR results shows that ligand act as monodentate which is also confirmed by semi-empirical study. NMR data reveals four coordinated geometry in solution. Biological activities data demonstrates that complexes show significant activity against various bacterial and fungal strains with few exceptions and are found cidal in their biological action. 

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Muhammad Pervaiz, Komal Mehmood Butt, Muhammad A. Raza, Ayoub Rasheed, Shakeel Ahmad, Ahmad Adnan and Munawar Iqbal. Extraction and applications of aluminum hydroxide from bauxite for commercial consumption. Chemistry International 1(2) (2015) 99-102

Abstract

Bauxite ore was collected from Khyber Pakhtun Khawa (KPK), Pakistan for extraction of aluminum in the form of aluminum hydroxide. The ore consists of 31.11% aluminum and other minerals (SiO2, Fe2O3, Na2O, CaO) was leached with alkaline solution. The aluminum extraction in the form of aluminum hydroxide from the clear solution in filtrate was successfully done by different processes involving autoclave, centrifuge and solvent extraction while the red mud in the form of residue was separated and recycled. The recycling process of iron from red mud was divided into roasting magnetic recovery, the reducing smelting method for iron separation. After extraction the composition of Al, Fe, Si, and Ca were determined from aluminum hydroxide and red mud both by chemical and spectrophotometric analysis. The compound was further characterized by FT-IR and results showed that a considerable amount of aluminum in the form of aluminum hydroxide was extracted along with other minerals. 

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