Skip to content

All published articles 1056

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

Spectrophotometric and Chromatographic Methods for the Estimation of Raloxifene Hydrochloride in Bulk and Pharmaceutical Formulations

Bahia A. Moussa, Ramzia I. El-Bagary & Essam Eldin A. Osman · Chemical Science International Journal · 2013

Aim: To develop simple, accurate and precise spectrophotometric and chromatographic methods for the estimation of Raloxifene Hydrochloride (RXF) in pure and pharmaceutical dosage forms. Study Design: Spectrophotometric and chromatographic methods. Place of Study: Pharmaceutical C...

Open access Research Article 10.9734/ACSJ/2013/4598

The Study of Nucleophlic and Electrohilic Reaсtions of Bis- and 3-Substituted Chroman-2, 4-Dions

A. A. Shkel, O. A. Mazhukina & O. V. Fedotova · Chemical Science International Journal · 2013

Aims: Here we study nucleophilic and electrophilic reactions of bis- and condensed 3-substituted chroman-2,4-dions to produce polychromeno (thio)pyrans and trioxaoxonium benzonaphthotetracene salts. Place and Duration of Study: Saratov State University, Chemistry Institute, betwe...

Open access Research Article 10.9734/ACSJ/2013/4645

Extraction, Preconcentration and Spectrophotometric Determination of Ethylene Glycol in Antifreeze Samples

Hijran Sanaan Jabbar & Azad Tawfiq Faizullah · Chemical Science International Journal · 2013

Aims: Using a simple and sensitive spectrophotometric method for the indirect determination of ethylene glycol by Malaprade reaction. The method was based on the extraction and preconcentration of iodine. Place and Duration of Study: Samples: Antifreeze samples were purchased fro...

Open access Research Article 10.9734/ACSJ/2013/3675

Synthesis and a Preliminary Characterization of Poly(Propylene)Imine Hexadecylamine Dendrimer (DAB-Am-16) Modified with Methyl Acrylate

Devaney Ribeiro do Carmo, Tayla Fernanda Serantoni da Silveira, Rosângela Silva de Laurentiz, Urquisa Oliveira Bicalho, Leandro Martins, Newton Luiz Dias Filho & Leonardo Lataro Paim · Chemical Science International Journal · 2013

This paper describes the reaction of a Poly(propylene)imine hexadecylamine dendrimer (DAB-Am-16) with methyl acrylate. The modified dendrimer obtained (DKMA) was characterized by vibrational spectroscopy, nuclear resonance magnetic (13C), thermogravimetry and scanning electron mi...

Open access Research Article 10.9734/ACSJ/2013/3818

Investigation of the Optical and Dielectric Properties of the Urea L-malic Acid NLO Single Crystal

Sagadevan Suresh · Chemical Science International Journal · 2013

Single crystals of urea L-malic acid were grown by the slow evaporation technique. The single crystal X-ray diffraction analysis reveals that the crystal belongs to the monoclinic system. The optical transmission study reveals the transparency of the crystal in the entire visible...

Open access Research Article 10.9734/ACSJ/2013/3503

XRD Characterization of Sand Deposit in River Niger (South Eastern Nigeria)

Ekpunobi Uche Eunice, Duru Chiamara Blessing & Obumselu Fabian · Chemical Science International Journal · 2013

In this study the sand deposits from River Niger in Anambra State, South Eastern Nigeria, were characterized for its potential utilization as industrial raw materials for ceramics and enamel wares. Physical, chemical and mineralogical characteristics of the sand sample (A) were d...

Open access Research Article 10.9734/ACSJ/2013/3250

Effect of Different Disinfecting Agents on Heavy Metals During Water Treatment

Mohammed A. Hussein, Abd EL-hafeez El- Seheimy, Mohamed El Sayed, Mahmoud M. El haloty, Wael M. Kamel, Yasser H. Mohamed & Noha E. Ibrahim · Chemical Science International Journal · 2013

Aims: The aim of this study to evaluate the effect of huwa-san and chlorine as disinfecting agents on heavy metals during water treatment. Place and Duration of Study: Department of Biochemistry, Faculty of Pharmacy, October 6 university (Medical Unit IV) and Inorganic laboratory...

Open access Research Article 10.9734/ACSJ/2013/2711

Deposition and Characterization of Silver Oxide from Silver Solution Recovered from Industrial Wastes

U. E. Ekpunobi, O. K. Okwukogu, A. I. Anozie, A. S. Ogbuagu, V. I. Ajiwe & C. I. Nweze · Chemical Science International Journal · 2013

Aims: To recover silver from industrial waste and use its solution in silver oxide deposition. Study Design: Extraction, electrodeopsition on different substrates, XRD and topographical characterizations. Place and Duration of Study: Sample: x-ray films were collected from Anambr...

Open access Research Article 10.9734/ACSJ/2013/3214

An Overview on Manganese in Nature

Gina Vasile Scăeţeanu, Leonard Ilie & Cătălina Călin · Chemical Science International Journal · 2013

Manganese is the most 12th prevalent element on Earth that occurs in 11 oxidation states (from -3 up to +7). An essential element present in all living organisms, manganese is required for growth, development and maintenance of health. It is naturally present in soil, plants, wat...

Open access Research Article 10.9734/ACSJ/2013/3748

Characterization Studies of Aluminum Alloy Substrate Surfaces Treated By Oxyanion Esters of Α-Hydroxy Acids and Their Salts

Volkan Cicek · Chemical Science International Journal · 2013

In this investigation, first, substrate coupons of commonly used alloys of Aluminum, which are 2024, 6061 and 7075 alloys, were immersed in solutions of inhibitors such as gluconate esters having the formula of (M)x(hydroxyacid)y(M‘aOb)z combining constituents that are already kn...

Open access Research Article 10.9734/ACSJ/2013/3823

Assessment of the Global Solar Energy Potential at Nigerian Defence Academy (NDA) Permanent Site Afaka Kaduna, Nigeria

I. Hassan & M. Y. Onimisi · Chemical Science International Journal · 2013

This paper assessed the global solar radiation potential in Nigerian Defence Academy, (NDA) permanent site Afaka Kaduna, North west Nigeria, for the period of March, April and May 2012. The cantonment lies exactly between longitudes 7º 12’E to 7º 35’E of the Greenwich meridian an...

Open access Research Article 10.9734/ACSJ/2013/3475

Photocatalytic Degradation of Rhodamine-B Under UV-Visible Light Irradiation Using Different Nanostructured Catalysts

María del C. Cotto-Maldonado, Teresa Campo, Eduardo Elizalde, Arancha Gómez-Martínez, Carmen Morant & Francisco Márquez · Chemical Science International Journal · 2013

Aims: The goal of this research is to determine the efficiency of different catalysts for the degradation of organic compounds as possible alternative for wastewater treatments. To reach this goal, many objectives should be previously satisfied including the synthesis of differen...

Open access Research Article 10.9734/ACSJ/2013/2712

Synthesis and Cytotoxicity of Some New Substituted Hydronaphthalene Derivatives

Mogedda E Haiba, Ebtehal S Al-Abdullah & Noha Mohamed Hilmy · Chemical Science International Journal · 2013

A new series of hydronaphthalene derivatives incorporated into or fused to different five or six membered nitrogen, oxygen, sulpher, heretrocyclic, S- glycosidic or N-glycosidic moieties and other related products had been described. The hydrazine derivative 2 was coupled with br...

Open access Research Article 10.9734/ACSJ/2013/3452