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All published articles 1056

Phenolic Foam Reinforced by Cedar’s Resin

Ramzy Hamed, Yolla Kazzi & Houssein Awada · Chemical Science International Journal · 2017

Recently phenolic foams have been received much attention because of their excellent properties including flame resistance, low density, high thermal stability over a broad temperature range and low generation of toxic gases during combustion. Cedar resin was used as a toughening...

Open access Research Article 10.9734/CSJI/2017/33377

Effect of Formulations on Functional Properties and Storage Stability of Nutritionally Enriched Multigrain Pasta

Harsimran Kaur, Hanuman Bobade, Arashdeep Singh, Baljit Singh & Savita Sharma · Chemical Science International Journal · 2017

High fiber low gluten whole grain flours of wheat, barley, soybean, maize, millets, mungbean, oats and flaxseeds were blended in various proportions as a partial replacement for wheat flour along with Xanthan gum @ 2% for the development of nutritionally enriched pasta. Prepared...

Open access Research Article 10.9734/CSJI/2017/33348

Optimization of Recovery Process of Silver from Obsolete Printed Circuit Boards (PCBs)

Olusola Adesina, Ajetunmobi Akeem & Okewale Akindele · Chemical Science International Journal · 2017

Aims: The aim of this work was to optimize the Silver recovery from Printed Circuit Boards (PCBs) of waste computers using statistical method by varying various parameters affecting the recovery. Methodology: A total of 50 experimental runs was generated using central composite d...

Open access Research Article 10.9734/CSJI/2017/20034

Comparative Alpha-amylase Inhibitory Properties of the Leaf Extracts of Petiveria alliacea L.

Seide M. Akoro, Mutiat A. Omotayo, Sola Ajibaye & Funmi Dada · Chemical Science International Journal · 2017

Aims: The study was designed to determine the phytochemical contents and the inhibitory effects of the leaf extracts of Petiveria alliacea L. on alpha-amylase enzyme. Study Design: Phytochemical Screening and in-vitro evaluation of alpha-amylase inhibitory effects of the leaf ext...

Open access Research Article 10.9734/CSJI/2017/32528

Vortex Assisted Dispersive Liquid-Liquid Microextraction: Determination of Cobalt by HPLC

F. Sánchez-Rojas & C. Bosch-Ojeda · Chemical Science International Journal · 2017

A simple an effective method was developed for preconcentration of cobalt in water samples. In the proposed approach, sodium diethyl dithiocarbamate (DDTC) was used as chelating agent, and vortex-assisted dispersive liquid-liquid microextraction combined with high performance liq...

Open access Research Article 10.9734/CSJI/2017/32190

Synthesis of [Oxa-, Thia-diazoles- and Triazole]-Thiols Derived from Butyric Acid: Conductivity Property, Complex Formation with Fe (II), Hg (II), and Synthesis of Seco-Acyclo-S-Glycosides

Djilali Boulerba, Adil A. Othman & Mohamed B. Taouti · Chemical Science International Journal · 2017

Three heterocyclic thiols:  2- propyl-1.3.4 – oxadiazole-5-thione/thiol 4/7,   2- propyl-1.3.4 – thiazole-5-thiole 8, 3- propyl-1.2.4 – triazole-5-thiole 9 have been synthesized from butyric acid. They showed conductivity properties and complex formation with Fe (II) and Hg (II)...

Open access Research Article 10.9734/CSJI/2017/32468

Adsorption of Cadmium and Copper Ions in Aqueous Solution by Using Activated Carbon Resulting from Hulls of Neem

R. Djakba, M. Harouna, S. F. Gaineumbo, N. L. C. Fonga, G. Baïboussa & B. B. Loura · Chemical Science International Journal · 2017

The present work aimed at the adsorption of cadmium (Cd2+) and Copper (Cu2+) ions from an aqueous solution by activated carbon prepared from hulls of Neem by a simple process of pyrolysis preceded by a chemical impregnation in zinc chloride. The process was optimized on the basis...

Open access Research Article 10.9734/CSJI/2017/32208

Computational Modelling of the Mechanisms, Kinetics and Thermodynamics of Pyrolysis of Isobutyl Bromide in the Gas-phase

Olubunmi Omolara Adeboye · Chemical Science International Journal · 2017

The kinetics, mechanisms and thermodynamics of the gas-phase pyrolysis of isobutyl bromide at 623 K was carried out using Density Functional Theory modelling with B3LYP at 6-311++G (2df, 2 p) level method of calculation. Calculations showed that the reaction is a unimolecular rea...

Open access Research Article 10.9734/CSJI/2017/30922

Novel Imidazole and Dibenzothiophene-dioxide Containing Tetracyclic Systems

M. Maisuradze, E. Kalandia, S. Tsqvitaia, M. Alapishvili, M. Matnadze, N. Gakhokidze & G. Phalavandishvili · Chemical Science International Journal · 2017

The aim of the current work is synthesis of new heterocyclic teratacyclic condensed systems that combine dibenzothiophenedioxide and imidazole in one molecule. The dibenzothiophene was taken as an initial compound and by consistent expansion were connected the imidazole cycles. A...

Open access Research Article 10.9734/CSJI/2017/30939

A Modified Poly (Trimethylene Terephthalate) Used for Fused Deposition Modeling: Synthesis and Application

Dandan Yu, Li Sun, Weilan Xue & Zuoxiang Zeng · Chemical Science International Journal · 2017

This paper presents the synthesis and application of a modified poly (trimethylene terephthalate) for Fused deposition modeling process. Five samples(S1-S5) of poly(trimethylene terephthalate-co-isophthalate-co-seacate) (PTTIS) were prepared by direct esterification and subsequen...

Open access Research Article 10.9734/CSJI/2017/32333

Assessment of Some Physicochemical, Bacteriological and Heavy Metals Properties of Effluent from a Chemical Industry in Niger Delta, Nigeria

D. C. Belonwu, N. N. Igwele & F. C. Anacletus · Chemical Science International Journal · 2017

Some physicochemical, heavy metals and bacteriological parameters of effluent samples from a chemical industry in Niger Delta, Nigeria, in two sampling seasons (Wet and Dry seasons) were assessed in this work using standard methods of analysis. Results of the physico-chemical par...

Open access Research Article 10.9734/CSJI/2017/32100

A Review on Effect of Solvents on Fluorescent Spectra

Firew Tarekegn Gemeda · Chemical Science International Journal · 2017

When absorption spectra are measured in solvents of different polarity, it is found that the positions, intensities, and shapes of the absorption bands are usually modified by these solvents. These changes are a result of physical intermolecular solute–solvent interaction forces...

Open access Research Article 10.9734/CSJI/2017/32006

Green Remediation of Carbamazepine from Water Using Novel Magnetic Iron Modified Carbonized Baggasse: Kinetics, Equilibrium and Mechanistic Studies

Selly Jemutai-Kimosop, Veronica A. Okello, Francis Orata, Zachary M. Getenga & Victor O. Shikuku · Chemical Science International Journal · 2017

Baggasse derived biochar magnetically modified with iron (α-Fe2O3-CBG) was fabricated, characterized and applied as a low-cost adsorbent for the removal of carbamazepine (CBZ), a pharmaceutically active compound which has been reported as an emergent water contaminant. Characteri...

Open access Research Article 10.9734/CSJI/2017/32444

Removal of Aniline and from Aqueous Solutions by Coagulation/Flocculation–Flotation

Shahin Ahmadi, Ferdos Kord Mostafapour & Edris Bazrafshan · Chemical Science International Journal · 2017

The aim of this study was to evaluate the efficiency of the coagulation/ flocculation and flotation process for aniline removal from aqueous solutions, which the dissolved air flotation (DAF) was applied in laboratory scale. After determination of the optimal condition of pH and...

Open access Research Article 10.9734/CSJI/2017/32016