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All published articles 1032

The Effects of Solvent and pH on the Electronic Spectral Properties of Indolino Spirobenzoxazine

Victor N. Mkpenie & Iniobong V. Mkpenie · International Research Journal of Pure and Applied Chemistry · 2015

The UV-visible spectra of indolino spirobenzoxazine were recorded in polar protic solvents, methanol and ethanol and polar aprotic solvent, acetone. The results showed a hypsochromic shift in the wavelength of maximum absorption with increase in solvent polarity. pH variation fro...

Open access Research Article 10.9734/IRJPAC/2016/19768

Kinetics, Isotherm, and Thermodynamics Study for the Adsorption of Basic Fuchsin on Cocoa Pod Husk Activated Carbon

Nwodika Chekwube, Onukwuli Okechukwu Dominic, Oderah Raphael Stone, Emembolu Loveth Nwanneka & Okongwu Dozie John · International Research Journal of Pure and Applied Chemistry · 2015

Aim: To prepare Activated carbon (AC) from local agro-forestry wastes, and apply it in dye adsorption in order to assess its efficiency in wastewater treatment. Study Design: Laboratory analysis for various parameters. Place and Duration of Study: Department of Chemical Engineeri...

Open access Research Article 10.9734/IRJPAC/2015/19229

Optical, Electrical and Viscosity Properties of Poly (Vinyl Alcohol) Films Embedded with Cr2O3 Nanoparticles Synthesised by Biological and Electrochemical Methods

Rakesh ., Sowbhagya ., Sannaiah Ananda & Netkal M. Made Gowda · International Research Journal of Pure and Applied Chemistry · 2015

The effect of Cr2O3 nanoparticles embedded in PVA on the structural, electrical and optical properties of composite films is studied experimentally. Sample is PVA films embedded with different sizes and concentrations of Cr2O3 nanoparticles. Structural properties are studied usin...

Open access Research Article 10.9734/IRJPAC/2015/19118

Computational Study of n-Acetylglutamate Hydrolysis under Acidic and Basic Conditions

José Cotuá & Sandra Cotes · International Research Journal of Pure and Applied Chemistry · 2015

Aims: To study N-acetylglutamate hydrolysis under acidic and basic conditions, using molecular modeling techniques.   Study Design: Hydrolysis of N-acetylglutamate was studied under acidic and basic conditions to establish the differences in chemical properties and conditions of...

Open access Research Article 10.9734/IRJPAC/2015/19769

Room Temperature Na2CO3-Catalysed One-pot Reaction of Benzaldehydes, Malononitrile and Phloroglucinol in Water, a Simple Green Synthetic Route to Antibacterial 2-Amino-4H-Benzopyrans

Ishmael B. Masesane & Shetonde O. Mihigo · International Research Journal of Pure and Applied Chemistry · 2015

A simple and green room temperature Na2CO3-catalysed three-component reaction of benzaldehydes, malononitrile and phloroglucinol in water to give 2-amino-4H-benzopyrans in 70-96% yields is described. The reaction was tolerated by electron-donating and electron-withdrawing substit...

Open access Research Article 10.9734/IRJPAC/2015/20066

Hydrothermal Treatment of Shrub Willow Followed by Sulfate Pulping and Bleaching

K. Dölle & C. Schomann · International Research Journal of Pure and Applied Chemistry · 2015

The laboratory study examines the suitability of shrub willow for paper making applications. The shrub willow was harvested, debarked, chopped, sorted and hydrothermal pretreated before sulfate pulping. After pulping a four stage bleaching process followed. The results show that...

Open access Research Article 10.9734/IRJPAC/2015/19131

Conductometric and Spectrophotometric Study of the Interaction of Methyl Violet with Sodium Dodecyl Sulfate

Khaled Edbey, Nabil Bader, Fateh B. Eltaboni, Abdelqader Imragaa, Salah Albaba & Maher Ahmed · International Research Journal of Pure and Applied Chemistry · 2015

The interactions of cationic dyes (methyl violet) with anionic surfactant sodium dodecyl sulfate (SDS) was studied in process of solubilization. The critical micelle concentration of the SDS with and without dye was determined by spectrophotometry and specific conductometry metho...

Open access Research Article 10.9734/IRJPAC/2015/19603

Theoretical Calculation of Antigen-Antibody Interactions for the Development of Antibody Based Filters

Mohidus Samad Khan, Michael A. Whitehead & Theo G. M. van de Ven · International Research Journal of Pure and Applied Chemistry · 2015

Antibody-antigen interactions play a major role in many biological systems and can be used in sensors to capture target molecules. We investigated, as an example, the interaction behaviour of Picloram, a herbicide, which can contaminate fresh water supply, and its corresponding a...

Open access Research Article 10.9734/IRJPAC/2015/19579

Investigation of the H3PO4-Promoted Reaction of Benzaldehydes, Ethyl Acetoacetate or Ethyl Cyanoacetate or Malononitrile in the Presence of Urea as a Route to Pyrimidin-2-ones and 2-Iminochromenes

Ishmael B. Masesane, Ngonye Keroletswe & Runner R. Majinda · International Research Journal of Pure and Applied Chemistry · 2015

The H3PO4-promoted reactions of benzaldehydes, active methylene compounds and urea are reported. Benzaldehydes, ethyl acetoacetate and urea react in the presence of H3PO4 to give substituted pyrimidin-2-ones in 49-84% yields. The three-component reaction failed when either ethyl...

Open access Research Article 10.9734/IRJPAC/2015/20189

Natural Radioactivity Levels in the Area around the Uranium Deposit of the Bahi District in Dodoma Region, Tanzania

Ebenezer E. Kimaro & Najat K. Mohammed · International Research Journal of Pure and Applied Chemistry · 2015

In this study samples of soil and water from different villages in the Bahi wetlands were analyzed for radioactivity levels of 226Ra, 232Th and 40K using gamma ray spectrometry. The mean activity concentration of 226Ra, 232Th and 40K in soil were found to be highest in the northe...

Open access Research Article 10.9734/IRJPAC/2015/17747

Adsorption Analysis of Mn(VII) from Aqueous Medium by Activated Orange Peels Powder

Vikal Gupta, Sharda Kumari & Chandresh Virvadiya · International Research Journal of Pure and Applied Chemistry · 2015

Adsorption of Manganese (VII) ions from aqueous solution onto a activated orange peels powder as low cost adsorbent has been investigated. The effects of various parameters such as contact time, initial manganese ion concentration, pH, particle size and adsorbent dose on the remo...

Open access Research Article 10.9734/RJPAC/2015/17917

Structural Characterization Using FT-IR and NMR of Newly Synthesized 1,3-bis(3-formylphenoxymethyl)-2,4,5,6-tetrachlorobenzene and 1,3-bis(3-(2-hydroxyphenyliminomethyl)phenoxymethyl)-2,4,5,6-tetrachlorobenzene

Iliyasu Aliyu Bashir, Sabiu Shafiu & Shamsu Ahmad · International Research Journal of Pure and Applied Chemistry · 2015

Aims: To synthesize a new aromatic dialdehyde using 1equivalant of 2, 4, 5, 6-tetrachloro-1,3-bis(chloromethyl)benzene and 2 equivalant of 3-hydroxybenzaldehyde. The dialdehyde obtain is to be reacted with 2 equivalant of 2-aminophenol to obtain the corresponding di-imine from th...

Open access Research Article 10.9734/IRJPAC/2015/18611

Utilization of Plantain (Musa species) Leaves for Biogas Production

Anthony E. Aiwonegbe, John O. Akinyomi & Esther U. Ikhuoria · International Research Journal of Pure and Applied Chemistry · 2015

Aim: To determine the relationship between the volumes of biogas that can be produced using different biomass/water ratios. Study Design: Biogas was produced by the anaerobic digestion or fermentation of plantain leaves. A practical laboratory scale experimental design was used t...

Open access Research Article 10.9734/IRJPAC/2015/18140

Evaluation of Antidiabetic Activity of Ethyl Linoleate Isolated from Decalepis hamiltonii Wight and Arn Seed

A. Rayar & R. Manivannan · International Research Journal of Pure and Applied Chemistry · 2015

Aims: The main objective of the study was designed to screen the phytochemical constituents of the seed of Decalepis hamiltonii Wight & Arn and also to study its effect on blood glucose level of rats. Study Design: Evaluation of Antidiabetic Activity of Ethyl Linoleate. Place...

Open access Research Article 10.9734/IRJPAC/2015/19222