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All published articles 998

Adsorption and Corrosion Inhibition Characteristics of Some Thiophene-3-Carbohydrazide Derivatives on Low Carbon Steel in Hydrochloric Acid Solutions

Abd El-Aziz S. Fouda, M. A. Diabb & Doaa A. Badawya · International Research Journal of Pure and Applied Chemistry · 2015

New compounds namely amino-N'-(3-(hydroxyimino)butan-2-ylidene)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbohydrazide (1), amino-N'-(thiophen-2-ylmethylene)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbohydrazide (2) and amino-N'-(1-(pyridin-2-yl)ethylidene)-4,5,6,7-tetrahydrobenzo[b...

Open access Research Article 10.9734/IRJPAC/2015/17491

Development of Poly (Ester Amide-Urethanes) from De-saturated Thevetia peruviana Seed Oil-FAMEs

T. O. Siyanbola, S. Kantheti, R. Narayan, B. Anjaneyulu, B. V. S. K. Rao, O. Olaofe, E. T. Akintayo & K. V. S. N. Raju · International Research Journal of Pure and Applied Chemistry · 2015

This study present the synthesis of eco-friendly poly(ester amide-urethane) coating from Thevetia peruviana seed oil (TPSO). FT-IR, 1H NMR and 13C NMR spectral analyses were used in confirming the structure of compounds. Physico-chemical properties of desaturated N,N'-bis (2-hydr...

Open access Research Article 10.9734/IRJPAC/2015/17769

Biodiesel Produced from Azadirachta indica and Hevea brasiliensis Seeds Oil: Effect of Additives on Cold Flow Properties

C. S. Ezeanyanaso, O. J. Okunola, V. O. Ajibola & E. B. Agbaji · International Research Journal of Pure and Applied Chemistry · 2015

This study is aimed to evaluate the effect of additives on cold flow properties of biodiesel fuel obtained from Azadirachta indica and Hevea brasiliensis, readily available seed oil in Nigeria. The seed oils were converted to biodiesels via transesterification and additives keros...

Open access Research Article 10.9734/IRJPAC/2015/16327

Chemical Composition of Essential Oil of Baeckea frutescens L.

Do N. Dai, Tran D. Thang, Tajudeen O. Olayiwola & Isiaka A. Ogunwande · International Research Journal of Pure and Applied Chemistry · 2015

The volatile components of the leaf oil of Baeckea frutescens L. (Myrtaceae) from the Hatinh Province, Vietnam, were analysed by capillary gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS) and co-elution techniques. The identified compounds constituted more...

Open access Research Article 10.9734/IRJPAC/2015/17199

Two-Steps Cloud Point Extraction-Spectrophotomtric Method for Separation, Pre-concentration and Determination of V (IV) and V (V) Ions in Real Samples Using Laboratory-Made Organic Reagents

Zuhair A. A. Khammas, Zianab T. Ibrahim & Khalid J. Al-adilee · International Research Journal of Pure and Applied Chemistry · 2015

Aims: To establish a new analytical method for the extraction and pre-concentration of V (IV) and V (V) species in real samples by cloud point extraction (CPE) coupled with spectrophotometry using two newly laboratory-made chelating reagents. Study Design: All factors affecting t...

Open access Research Article 10.9734/IRJPAC/2015/16431

The Impact of Modifying the Chemical Structure of Nalidixic Acid on the Antimicrobial Activity of Its Derivatives: A Review

Łukasz Popiołek & Monika Gawrońska-Grzywacz · International Research Journal of Pure and Applied Chemistry · 2015

Nalidixic acid was the first quinolone antibiotic introduced to the treatment of urinary tract infections. It was effective especially against Gram-positive and Gram-negative bacteria but resistance to it emerged rapidly. In this article we reviewed the newly synthesized nalidixi...

Open access Research Article 10.9734/IRJPAC/2015/17634

Mutagenic Effects of Some Metal Complexes I. Cytotoxic Activity of Bis (L-glutaminato) Tetrachloropalladate (II)

A. F. Badawi, A. H. Summan, M. Hannan & Z. Abdeen · International Research Journal of Pure and Applied Chemistry · 2015

The tetrachloropalladate (II) complex salt which with glutamine of formula [(Pd Cl4) H2. (L- Glutamine)2], was prepared and characterized through IR spectroscopy. The compound was found cytotoxic to TA 98 bacterial cells of Salmonella typhimurium. To our knowledge this is the fir...

Open access Research Article 10.9734/IRJPAC/2015/16772

Evaluation of Biological Activity of Some Benzimidazole Derivatives as Antifungal

Hamdan S. Al-Ebaisat · International Research Journal of Pure and Applied Chemistry · 2015

In this study, a series of benzimidazole derivatives was synthesized by using a simple, inexpensive and rapid method using different ammonium salts. Some of these derivatives were exclusively isolated, characterized and tested for their anti-fungal activity. The biological activi...

Open access Research Article 10.9734/IRJPAC/2015/17011

Taraxastane and Lupane Triterpenoids from the Bark of Manilkara zapota

Flavien Aristide Alfred Toze, Marie Fomani, Achille Bissoue Nouga, Jean Rodolphe Chouna, Kouam ., Alain François Kamdem Waffo & Jean Duplex Wansi · International Research Journal of Pure and Applied Chemistry · 2015

Aims: Discovering new lead compounds against cancer and bacterial infections is a crucial step to ensuring a sustainable global pipeline for new effective drugs. This study focus on the isolation of secondary metabolites of methanol extract from the bark of Manilkara zapota (Sapo...

Open access Research Article 10.9734/IRJPAC/2015/17436

Synthesis, Structure Delineation and Antibacterial Activity Study of Metal (II) Complexes of Schiff Base Derived from Kanamycin and Methyl Ester of Amoxicillin

Narendra Kumar Chaudhary & Parashuram Mishra · International Research Journal of Pure and Applied Chemistry · 2015

A novel Schiff base ligand was synthesized from Kanamycin and methyl ester of Amoxicillin in stoichiometric ratio. Three metal chlorides viz. CuCl2.2H2O, CoCl2.6H2O and ZnCl2 were used for the synthesis of respective metal complexes from synthesized novel ligand. The proposed str...

Open access Research Article 10.9734/IRJPAC/2015/17013

Anions, Complexing and Salting - Out Agents Effects on the Extraction of Cr (VI) from HCl and H2SO4 Acid Media Using Chloroform Solution of Bis (4-acylpyrazolones)

I. A. Kalagbor & B. A. Uzoukwu · International Research Journal of Pure and Applied Chemistry · 2015

Extraction of Cr(VI) into chloroform solutions of 4-adipoylbis (1- phenyl-3methypyrazolone-5), H2Adp and 4-sebacoylbis (1- phenyl-3-methypyrazolone-5), H2SP were carried out and the effect of the anions, Cl-, SO42-, Br-, I-, SCN-, PO42-, EDTA, Oxalate acetate and tartarate were s...

Open access Research Article 10.9734/IRJPAC/2015/16790

Stabilization of Metal- Laden Soils Using Different Additives – A Review of Technologies

C. R. Ramakrishnaiah & Sukruti Duvvuri · International Research Journal of Pure and Applied Chemistry · 2015

The presentations of researchers who have carried out studies on the “Stabilization of metal laden hazardous wastes for disposal in to Secured Land Fill” are reviewed and documented in this paper. The importance of protecting ground water aquifers from getting polluted by leachat...

Open access Research Article 10.9734/IRJPAC/2015/16290

Hyphenated Techniques in Liquid Chromatography as Current Trends in Natural Products Analysis

Nneka N. Ibekwe & Sunday J. Ameh · International Research Journal of Pure and Applied Chemistry · 2015

Historically, drug discovery from natural products has been a time and resource-intensive process. Bioassay-guided isolation of natural products often leads to already known compounds of limited, or no chemical or pharmacological interest. Some bioactive compounds are unstable an...

Open access Research Article 10.9734/IRJPAC/2015/14458

Spectrophotometric Determination of Phenol in Natural Waters by Trichloromethane Extraction Method after Steam Distillation

W. O. Medjor, C. A. Wepuaka & Stephen Godwill · International Research Journal of Pure and Applied Chemistry · 2015

The concentrations of phenol in natural waters were determined so as to ascertain water quality as water intended for human consumption. Total phenols were determined by molecular spectrophotometry, after steam distillation, complexation with 4-aminoantipyrene and extraction into...

Open access Research Article 10.9734/IRJPAC/2015/17160