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  Subjects -> CHEMISTRY (Total: 843 journals)
    - ANALYTICAL CHEMISTRY (47 journals)
    - CHEMISTRY (594 journals)
    - CRYSTALLOGRAPHY (22 journals)
    - ELECTROCHEMISTRY (26 journals)
    - INORGANIC CHEMISTRY (42 journals)
    - ORGANIC CHEMISTRY (45 journals)
    - PHYSICAL CHEMISTRY (67 journals)

CHEMISTRY (594 journals)                  1 2 3 4 5 6 | Last

2D Materials     Hybrid Journal   (Followers: 7)
Accreditation and Quality Assurance: Journal for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 27)
ACS Catalysis     Full-text available via subscription   (Followers: 28)
ACS Chemical Neuroscience     Full-text available via subscription   (Followers: 16)
ACS Combinatorial Science     Full-text available via subscription   (Followers: 17)
ACS Macro Letters     Full-text available via subscription   (Followers: 24)
ACS Medicinal Chemistry Letters     Full-text available via subscription   (Followers: 26)
ACS Nano     Full-text available via subscription   (Followers: 179)
ACS Photonics     Full-text available via subscription   (Followers: 5)
ACS Synthetic Biology     Full-text available via subscription   (Followers: 18)
Acta Chemica Iasi     Open Access  
Acta Chimica Sinica     Full-text available via subscription  
Acta Chimica Slovaca     Open Access   (Followers: 5)
Acta Chromatographica     Full-text available via subscription   (Followers: 8)
Acta Facultatis Medicae Naissensis     Open Access   (Followers: 1)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 5)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 5)
Adsorption Science & Technology     Full-text available via subscription   (Followers: 10)
Advanced Functional Materials     Hybrid Journal   (Followers: 47)
Advanced Science Focus     Free   (Followers: 3)
Advances in Chemical Engineering and Science     Open Access   (Followers: 26)
Advances in Chemical Science     Open Access   (Followers: 10)
Advances in Chemistry     Open Access   (Followers: 4)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 14)
Advances in Drug Research     Full-text available via subscription   (Followers: 19)
Advances in Environmental Chemistry     Open Access   (Followers: 1)
Advances in Enzyme Research     Open Access   (Followers: 2)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 8)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 13)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 9)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 15)
Advances in Nanoparticles     Open Access   (Followers: 11)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 10)
Advances in Polymer Science     Hybrid Journal   (Followers: 38)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 8)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 12)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 6)
Advances in Science and Technology     Full-text available via subscription  
African Journal of Chemical Education     Open Access   (Followers: 1)
African Journal of Pure and Applied Chemistry     Open Access   (Followers: 5)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 1)
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 4)
AMB Express     Open Access  
Ambix     Hybrid Journal   (Followers: 2)
American Journal of Applied Sciences     Open Access   (Followers: 33)
American Journal of Biochemistry and Biotechnology     Open Access   (Followers: 73)
American Journal of Biochemistry and Molecular Biology     Open Access   (Followers: 11)
American Journal of Chemistry     Open Access   (Followers: 25)
American Journal of Plant Physiology     Open Access   (Followers: 11)
American Mineralogist     Full-text available via subscription   (Followers: 7)
Analyst     Full-text available via subscription   (Followers: 38)
Angewandte Chemie     Hybrid Journal   (Followers: 24)
Angewandte Chemie International Edition     Hybrid Journal   (Followers: 139)
Annales UMCS, Chemia     Open Access   (Followers: 2)
Annals of Clinical Chemistry and Laboratory Medicine     Open Access   (Followers: 1)
Annual Reports in Computational Chemistry     Full-text available via subscription   (Followers: 2)
Annual Reports Section A (Inorganic Chemistry)     Full-text available via subscription   (Followers: 3)
Annual Reports Section B (Organic Chemistry)     Full-text available via subscription   (Followers: 7)
Annual Review of Chemical and Biomolecular Engineering     Full-text available via subscription   (Followers: 10)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Anti-Infective Agents     Hybrid Journal   (Followers: 3)
Antiviral Chemistry and Chemotherapy     Full-text available via subscription   (Followers: 1)
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 4)
Applied Spectroscopy     Full-text available via subscription   (Followers: 16)
Applied Surface Science     Hybrid Journal   (Followers: 22)
Arabian Journal of Chemistry     Full-text available via subscription   (Followers: 6)
ARKIVOC     Open Access   (Followers: 1)
Asian Journal of Biochemistry     Open Access   (Followers: 1)
Australian Journal of Chemistry     Hybrid Journal   (Followers: 5)
Autophagy     Hybrid Journal   (Followers: 3)
Avances en Quimica     Open Access   (Followers: 1)
Biochemical Pharmacology     Hybrid Journal   (Followers: 6)
Biochemistry     Full-text available via subscription   (Followers: 158)
Biochemistry Insights     Open Access   (Followers: 4)
Biochemistry Research International     Open Access   (Followers: 5)
BioChip Journal     Hybrid Journal   (Followers: 1)
Bioinorganic Chemistry and Applications     Open Access   (Followers: 6)
Bioinspired Materials     Open Access   (Followers: 1)
Biointerface Research in Applied Chemistry     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biology, Medicine, & Natural Product Chemistry     Open Access  
Biomacromolecules     Full-text available via subscription   (Followers: 19)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 8)
Biomedical Chromatography     Hybrid Journal   (Followers: 7)
Biomolecular NMR Assignments     Hybrid Journal   (Followers: 2)
BioNanoScience     Partially Free   (Followers: 3)
Bioorganic & Medicinal Chemistry     Hybrid Journal   (Followers: 31)
Bioorganic & Medicinal Chemistry Letters     Hybrid Journal   (Followers: 25)
Bioorganic Chemistry     Hybrid Journal   (Followers: 5)
Biopolymers     Hybrid Journal   (Followers: 16)
Biosensors     Open Access   (Followers: 2)
Biotechnic and Histochemistry     Hybrid Journal   (Followers: 3)
Boletin de la Sociedad Chilena de Quimica     Open Access  
Bulletin of the Chemical Society of Ethiopia     Open Access   (Followers: 3)
Bulletin of the Chemical Society of Japan     Full-text available via subscription   (Followers: 13)
C - Journal of Carbon Research     Open Access  
Cakra Kimia (Indonesian E-Journal of Applied Chemistry)     Open Access   (Followers: 1)
Canadian Association of Radiologists Journal     Full-text available via subscription   (Followers: 4)

        1 2 3 4 5 6 | Last

Journal Cover Chemistry and Materials Research
  [11 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2224-3224 - ISSN (Online) 2225-0956
   Published by International Institute for Science, Technology and Education (IISTE) Homepage  [30 journals]
  • Synthesis of Triazolo and Pyrazolo Derivatives of Quinoline Nucleus

    • Authors: A. Hussain K. Sharba, Huda A. Hassan, Dheefaf F. Hassan
      Abstract: New heterocyclic derivatives of quinoline are reported. Reaction of quinoline-2-thiol 4 with hydrazine hydrate gave 2-hydrazionoquinoline 5. Treatment of  5 with CS2 in pyridine afforded 1,2,4-triazolo-[4,3-a]-quinolin-1-2H-thione 6, whereas the reaction of 5 with carboxylic acids namely formic acid or acetic acid, yielded the 1,2,4-triazol-[4,3-a]-quinolin 7 or 5-methyl-1,2,4-triazolo [4,3-a]-quinoline 8 through ring closure. Diazotization of 5 under acidic conditions produced the fused tetrazole compound 9, tetrzolo-[1,5-a]-quinoline. Moreover, treatment of 5 with active methlyene compounds gave two pyrazole derivatives 10 and 11. Azomethines 12a-e were prepared through condensation of 5 with aromatic aldehydes or ketones. Keyword: triazoloquinoline, tetrazoloquinoline, pyrazoloquinolines, azomethines.  
      Issue No: Vol. 8
       
  • Studying the Optimum Reaction Conditions for Organic Esterification of
           Glycerol to Benzoic Acid and Some Devices by Using Ecofriendly Media

    • Authors: Mohammad Keshe, Joumaa Merza, Ayman Karam
      Abstract: The organic esterification reaction of some aromatic carboxylic acids and glycerol in the absence of organic solvents to obtain some α-mono aromate glycerol have been studied. The optimum reaction conditions were determined by esterification of glycerol and benzoic acid to produce α-mono benzoate glycerol (α-MBG). The optimal condition (catalysts and solvents) to get a high selective compounds and high yields have been studied. When use of heterogeneous catalyst (Amberlyst-15) and excess of glycerol (eight time) which plays as a reactive and solvent getting a required selectivity and high yield (about70%) in comparison to the homogeneous catalysts (H2SO4, CH3SO3H), in addition to the low selectivity of the final product. The reaction followed by using thin layer chromatography (T.L.C), the molecular structures have determinate by spectroscopy methods :FT-IR, 1H-NMR, 13C-NMR. Keywords: Glycerol, Benzoic Acid, Esterification Reaction, Amberlyst-15, Ecofriendly Media.
      Issue No: Vol. 8
       
  • Comparison of HPLC and UV Spectrophotometric Methods for the Determination
           of Cefaclor monohydrate in Pharmaceutical Dosages

    • Authors: Alfeen. Mohammad A
      Abstract: This paper describes the development and evaluation of a HPLC and UV spectrophotometric methods to quantify Cefaclor Monohydrate in Oral suspensions and Capsules. HPLC analysis were carried out using a C18 Knauer column and a mobile phase composed of Triethylamine: methanol: Acetonitrile: water (2: 10: 20: 68)v\v%, with a flow rate of 1.0 mL/min and UV detection at 265 nm. For the spectrophotometric analysis, water was used as solvent and the wavelength of 264 nm was selected for the detection. Both methods were found to quantify Cefaclor monohydrate in Oral suspensions and Capsules accurately. Therefore HPLC and UV methods presented the most reliable results for the analyses of Oral suspension and Capsules.
      Issue No: Vol. 8
       
  • Synthesis and Spectroscopic Studies of Copper(II) and Cobalt(II) Complexes
           with Tetradentate Ligand Derived from Thiophene-2-carbaldehyde

    • Authors: Khaled Alzobar, Rushdi Madwar Lena Radwan
      Abstract: The Synthesis of two Tetradentate Schiff base Ligands N2S2 were carried out by the condensation of aldehyde with primary amine. New tetradentate ligands N,N`bis (2-MethylenThiophene)-1,4 phenylene diamine (MTPA) and N,N`bis (2- Methylen Thiophene) ethylenediamine (MTEA) were synthesized from the reaction of thiophene- 2-carbaldehyde  with phenylene 1,4 diamine and ethylene diamine, respectively.The ligands were reacted with Co(II) and Cu(II) metal salts, where the molar ratio of reaction was (1:2) (MTPA:Metal) and (1:1) (MTEA:Metal) molar ratio to form four new coordinated complexes. The mode of bonding and overall geometry of the complexes were determined through elemental analyses, FT-IR, 1H,13C NMR and electronic spectral studies. These studies revealed octahedral geometries for the Co(II) and tetrahedral for Cu(II) complexes with MTPA ligand. While for MTPA complexes with Co(II) and Cu(II) were monomeric octahedral complexes.The structure of the ligands and its metal complexes were elucidated by elemental analyses, IR, 1H,13C NMR, electronic spectra. Keywords: Tetradentate Ligand , Schiff base, Copper(II) and Cobalt(II) Complexes.
      Issue No: Vol. 8
       
  • Alkali Activated Eco-friendly Metakaolin/Slag Geopolymer Building Bricks

    • Authors: H. M. Khater, M. Ezzat, Abdeen M. El Nagar
      Abstract: Alkali activation of alumino-silicate materials is a complex chemical process evolving dissolution of raw materials, transportation or orientation and polycondensation of the reaction products. This study explores the physico-mechanical characteristics of geopolymer bricks using eco-friendly slag/metakaolin binder. Alkaline activation of slag – metakaolin binder of geopolymer brick results in formation of C-A-S-H as well as N-A-S-H gel, which adopts different structures depending on the nature of the alkaline activator. Activators used are 10% NaOH solution in addition to 5% liquid sodium silicate both used from the total binder weight), Geopolymer bricks prepared by partial binder substitution of metakaolin (fired kaolin) by water cooled slag in the ratio from 0 up to 100 %, while the used fine sand(passing 1 mm) in the ratio of 15% from the total weight. The properties of the produced geopolymer bricks have been studied through measurement of compressive strength, water absorption, FTIR, XRD and SEM imaging. Results demonstrate the possibility of substitution of metakaolin by water cooled amorphous slag materials in producing geopolymer bricks with superior properties where an increase in mechanical strength with water cooled slag increase up to 40 %  was noticed giving compressive strength values exceed 70 MPa which can be used for production of  heavy duty  bricks which can be applied in a severe weathering condition as well as special purposes building applications, however further increase results in lowering strength values as a  but still exceed 30 MPa after 28 days of hydration. Keywords: slag, metakaolin, bricks, eco-friendly, sustainability.
      Issue No: Vol. 8
       
  • Effect of Variable Viscosity, Dissipation and Hall Currents on Convective
           Heat and Mass Transfer Flow Past a Stretching Sheet

    • Authors: P. Kristaiah
      Abstract: We consider the influence dissipation, variable viscosity, Hall current of a magneto-hydrodynamic free-convective flow and heat and mass transfer flow past a stretching sheet in the presence of heat generation/absorption. The fluid viscosity is assumed to vary as an inverse linear function of temperature. The boundary-layer equations governing the fluid flow, heat and mass transfer under consideration have been reduced to a system of non-linear ordinary differential equations by employing a similarity transformation. Using the finite difference scheme, numerical solutions to the transform ordinary differential equations have been obtained and the results are presented graphically. The rare of heat anf mass transfer sre discussed numerically for different variations. Keywords: Radiation absorption, Variable viscosity, Soret effect, MHD, Hall current, Heat and mass transfer.
      Issue No: Vol. 8
       
  • Eco-friendly Synthesis of Coumarin Derivatives via Pechmann Condensation
           Using Heterogeneous Catalysis

    • Authors: Fadia AL-haj hussien, Jomaa Merza, Ayman Karam
      Abstract: A coumarin derivatives has been synthesized via Pechmann condensation naphthol with a β-ketoester using Amberlyst-15 as a green and efficient catalyst.The optimal conditions are: molar ration of reagents (1:1), Amberlyst-15 (10mol.%, 0.2 g) at 110°C for 150min. in solvent-free conditions. The recyclability of amberlyst 15 adds an advantage to the studied reaction.These coumarins derivatives have biological activity and momentousness in the industrial fields Keywords: Coumarins, Phenols, β-Ketoesters, Pechmann Reaction,  Amberlyst-15
      Issue No: Vol. 8
       
 
 
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