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Chemical Science International Journal

Published by SCIENCEDOMAIN international · ISSN (electronic) 2456-706X

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999

Articles indexed

9

2026 articles

998

Open access

3,087

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Articles (999)

Thermodynamics of the Solvation of Lead Nitrate in Mixed DMF-H2O Solvents at 301.15 K

Esam A. Gomaa & Elsayed M. Abou Elleef · Chemical Science International Journal · 2013

Aims: The aim of this study is to determine thermodynamic energies of the solvation of lead nitrate in mixed DMF-H2O solvents at 301.15 K. The Gibbs free energies as a very important thermodynamic property were evaluated for Pb(NO3)2 in mixed dimethylformamide DMF-H2O solvents at...

Open access Research Article 10.9734/ACSJ/2013/4343

Solvent Extraction Studies of Uranium (VI) from Aqueous Media into Chloroform Solution of N,N´-ethylenebis(4-propionyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-oneimine)

U. J. Chukwu & J. Godwin · Chemical Science International Journal · 2013

The extraction of Uranium (VI) from aqueous media of varying pH values (0.3 – 9.0) was studied using chloroform solution of 0.05M N,N`-ethylenebis(4-propionyl-2,4-dihydro-5-methyl-2-phenyl-3H- pyrazol-3-oneimine) (H2PrEtP) Schiff base. The effect of 4-propionyl-2,4-dihydro-5-meth...

Open access Research Article 10.9734/ACSJ/2013/4155

Densities, Viscosities and Ultrasonic Studies of Binary Liquid Mixture of Ethylamine and Benzyl Alcohol at Different Temperatures

Chandra Mohan Saxena, Archna Saxena, Ashok Kumar Srivastava & Naveen Kumar Shukla · Chemical Science International Journal · 2013

Ultrasonic studies, densities and viscosities of binary liquid mixture of ethylamine and benzyl alcohol have been measured at different temperatures at 30ºC, 35ºC and 40ºC. The experimental value of speed of sound (u), isentropic compressibility (βs), intermolecular free length (...

Open access Research Article 10.9734/ACSJ/2013/5229

Level of Selected Metals in Water, Sediment and Fish Samples from Itapaji Dam, South-Western, Nigeria

Adefemi Oluyemi Samuel · Chemical Science International Journal · 2013

The level of metals (Zn, Fe, Pb, Cu, Mn, Cr, Na, Mg, Ca and K) in water, sediment and fish samples from Itapaji dam for both dry and wet seasons in two years were determined using standard analytical methods. The concentrations of metals were higher in dry season than those of we...

Open access Research Article 10.9734/ACSJ/2013/4988

Persistent Organochlorine Compounds in the Water and Sediment Samples from the Lake Bosomtwe in Ghana

Samuel Afful, Johannes A.M. Awudza, Shiloh Osae & Stevester K. Twumasi · Chemical Science International Journal · 2013

Aims: To investigate the burden of organochlorine pesticides (OCPs) and its degradation products as well as indicator polychlorinated biphenyl (PCBs) in the water and sediments. Study Design: This investigation involved one year monitoring of the Lake. Place and Duration of Study...

Open access Research Article 10.9734/ACSJ/2013/3913

Sorrel (Hibiscus sabdariffa) Seed Oil Extraction Optimization and Quality Characterization

E. Betiku & T. F. Adepoju · Chemical Science International Journal · 2013

Aims: This study was aimed at separating seed oil from sorrel (Hibiscus sabdariffa) oilseeds using application of solvent extraction method. The process was optimized using response surface methodology and the quality of the seed oil was determined. Methodology: Optimization of o...

Open access Research Article 10.9734/ACSJ/2013/2777

A Combined Experimental Green Flow-Injection Procedure and Computational Analysis to Determine Amino Acids

Samy Emara, Tarek Aboul-Fadl, Abdel Nasser El-Shorbagy, Maha Kamal, Walaa Zarad & Mohamed Abdel Kawi · Chemical Science International Journal · 2013

Aim: Methods of pollution reduction and human health protection would be more successful if the fields of green analytical chemistry and computational analysis could come together. This overlap would help to minimize, or even eliminate the use and generation of hazardous substanc...

Open access Research Article 10.9734/ACSJ/2013/4923

Photocatalytic Activity of Titanium Oxide – Iron Oxide Coatings Prepared by Plasma Spraying

P. Ctibor, V. Stengl & Z. Pala · Chemical Science International Journal · 2013

This study examines the photocatalytic activity of coatings produced by atmospheric plasma spraying (APS). The spraying tool used is a water-stabilized plasma gun WSP. The TiO2– Fe2O3 powder with and without Na2SiO3 additive was agglomerated to build particles suitable for feedin...

Open access Research Article 10.9734/ACSJ/2013/4745

Synthesis and Studies on Some Spiro and Fused of Quinone Derivatives

H. A. Soleiman, A. K. Khalafallah & A. M. H. Sorry · Chemical Science International Journal · 2013

Some new Spiro β-lactam, Spiro thiazolidine derivatives were synthesized by the reaction of new Schiff bases (5a-c, 8a-c ) with chloroacetyl chloride and/or mercaptoacetic acid to give new Spiro β-lactam (6a-c, 9a-c ) and new Spiro thiazolidinone derivatives (7a-c, 10a-c ) . Also...

Open access Research Article 10.9734/ACSJ/2013/3213

Thieno[2,3-d]Pyrimidin-4-Ones. Part 3.* Electrophilic Ipso-Substitution Reactions of Methyl and Methoxycarbonyl Groups

B. Zh. Elmuradov, Kh. A. Bozorov, А. Zh. Kurbanbayeva, I. S. Ortikov, Kh. M. Bobakulov, N. D. Abdullayev, A. Yili2, H. A. Aisa & Kh. М. Shakhidoyatov · Chemical Science International Journal · 2013

Interactions of 5,6-dimethyl- (1), 3,5,6-trimethylthieno[2,3-d]pyrimidin-4(3H)-ones (2) and 2,3-dimethyl- (5-7), 2-methyl-3-methoxycarbonylthieno[2,3-d]dihydropyrrolo-, -tetrahydropyrido-, tetrahydroazepino[1,2-a]pyrimidin-4-ones (14-16) with nitrating mixture were investigated....

Open access Research Article 10.9734/ACSJ/2013/4203