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  Subjects -> CHEMISTRY (Total: 843 journals)
    - ANALYTICAL CHEMISTRY (47 journals)
    - CHEMISTRY (596 journals)
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CHEMISTRY (596 journals)                  1 2 3 | Last

Showing 1 - 200 of 735 Journals sorted alphabetically
2D Materials     Hybrid Journal   (Followers: 5)
Accreditation and Quality Assurance: Journal for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 25)
ACS Catalysis     Full-text available via subscription   (Followers: 25)
ACS Chemical Neuroscience     Full-text available via subscription   (Followers: 15)
ACS Combinatorial Science     Full-text available via subscription   (Followers: 23)
ACS Macro Letters     Full-text available via subscription   (Followers: 20)
ACS Medicinal Chemistry Letters     Full-text available via subscription   (Followers: 32)
ACS Nano     Full-text available via subscription   (Followers: 160)
ACS Photonics     Full-text available via subscription   (Followers: 6)
ACS Synthetic Biology     Full-text available via subscription   (Followers: 16)
Acta Chemica Iasi     Open Access  
Acta Chimica Sinica     Full-text available via subscription  
Acta Chimica Slovaca     Open Access   (Followers: 1)
Acta Chromatographica     Full-text available via subscription   (Followers: 8)
Acta Facultatis Medicae Naissensis     Open Access  
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 4)
Acta Scientifica Naturalis     Open Access  
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 5)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 6)
Adsorption Science & Technology     Full-text available via subscription   (Followers: 4)
Advanced Functional Materials     Hybrid Journal   (Followers: 43)
Advanced Science Focus     Free   (Followers: 3)
Advances in Chemical Engineering and Science     Open Access   (Followers: 50)
Advances in Chemical Science     Open Access   (Followers: 11)
Advances in Chemistry     Open Access   (Followers: 9)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 14)
Advances in Drug Research     Full-text available via subscription   (Followers: 21)
Advances in Enzyme Research     Open Access   (Followers: 4)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 8)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 12)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 8)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 15)
Advances in Nanoparticles     Open Access   (Followers: 12)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 13)
Advances in Polymer Science     Hybrid Journal   (Followers: 37)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 13)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 13)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 5)
Advances in Science and Technology     Full-text available via subscription   (Followers: 4)
African Journal of Bacteriology Research     Open Access  
African Journal of Chemical Education     Open Access   (Followers: 2)
African Journal of Pure and Applied Chemistry     Open Access   (Followers: 6)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 3)
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Biochemistry and Biotechnology     Open Access   (Followers: 60)
American Journal of Biochemistry and Molecular Biology     Open Access   (Followers: 13)
American Journal of Chemistry     Open Access   (Followers: 23)
American Journal of Plant Physiology     Open Access   (Followers: 12)
American Mineralogist     Full-text available via subscription   (Followers: 8)
Anadolu University Journal of Science and Technology     Open Access  
Analyst     Full-text available via subscription   (Followers: 41)
Angewandte Chemie     Hybrid Journal   (Followers: 117)
Angewandte Chemie International Edition     Hybrid Journal   (Followers: 163)
Annales UMCS, Chemia     Open Access   (Followers: 1)
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: 9)
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  
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 5)
Applied Spectroscopy     Full-text available via subscription   (Followers: 24)
Applied Surface Science     Hybrid Journal   (Followers: 22)
Arabian Journal of Chemistry     Open Access   (Followers: 6)
ARKIVOC     Open Access   (Followers: 2)
Asian Journal of Biochemistry     Open Access   (Followers: 1)
Atomization and Sprays     Full-text available via subscription   (Followers: 2)
Australian Journal of Chemistry     Hybrid Journal   (Followers: 4)
Autophagy     Hybrid Journal   (Followers: 2)
Avances en Quimica     Open Access   (Followers: 1)
Biochemical Pharmacology     Hybrid Journal   (Followers: 8)
Biochemistry     Full-text available via subscription   (Followers: 211)
Biochemistry Insights     Open Access   (Followers: 4)
Biochemistry Research International     Open Access   (Followers: 4)
BioChip Journal     Hybrid Journal  
Bioinorganic Chemistry and Applications     Open Access   (Followers: 8)
Bioinspired Materials     Open Access   (Followers: 2)
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: 17)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 11)
Biomedical Chromatography     Hybrid Journal   (Followers: 7)
Biomolecular NMR Assignments     Hybrid Journal   (Followers: 2)
BioNanoScience     Partially Free   (Followers: 4)
Bioorganic & Medicinal Chemistry     Hybrid Journal   (Followers: 94)
Bioorganic & Medicinal Chemistry Letters     Hybrid Journal   (Followers: 84)
Bioorganic Chemistry     Hybrid Journal   (Followers: 9)
Biopolymers     Hybrid Journal   (Followers: 17)
Biosensors     Open Access   (Followers: 1)
Biotechnic and Histochemistry     Hybrid Journal   (Followers: 2)
Bitácora Digital     Open Access  
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: 25)
Bulletin of the Korean Chemical Society     Hybrid Journal  
C - Journal of Carbon Research     Open Access   (Followers: 2)
Canadian Association of Radiologists Journal     Full-text available via subscription   (Followers: 2)
Canadian Journal of Chemistry     Full-text available via subscription   (Followers: 6)
Canadian Mineralogist     Full-text available via subscription   (Followers: 3)
Carbohydrate Research     Hybrid Journal   (Followers: 27)
Carbon     Hybrid Journal   (Followers: 62)
Catalysis for Sustainable Energy     Open Access   (Followers: 5)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 7)
Catalysis Science and Technology     Free   (Followers: 5)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysts     Open Access   (Followers: 6)
Cellulose     Hybrid Journal   (Followers: 4)
Cereal Chemistry     Full-text available via subscription   (Followers: 4)
ChemBioEng Reviews     Full-text available via subscription  
ChemCatChem     Hybrid Journal   (Followers: 6)
Chemical and Engineering News     Free   (Followers: 11)
Chemical Bulletin of Kazakh National University     Open Access  
Chemical Communications     Full-text available via subscription   (Followers: 63)
Chemical Engineering Research and Design     Hybrid Journal   (Followers: 20)
Chemical Research in Chinese Universities     Hybrid Journal   (Followers: 3)
Chemical Research in Toxicology     Full-text available via subscription   (Followers: 17)
Chemical Reviews     Full-text available via subscription   (Followers: 123)
Chemical Science     Open Access   (Followers: 18)
Chemical Technology     Open Access   (Followers: 11)
Chemical Vapor Deposition     Hybrid Journal   (Followers: 4)
Chemical Week     Full-text available via subscription   (Followers: 7)
Chemie in Unserer Zeit     Hybrid Journal   (Followers: 52)
Chemie-Ingenieur-Technik (Cit)     Hybrid Journal   (Followers: 25)
ChemInform     Hybrid Journal   (Followers: 4)
Chemistry & Biodiversity     Hybrid Journal   (Followers: 5)
Chemistry & Biology     Full-text available via subscription   (Followers: 29)
Chemistry & Industry     Hybrid Journal   (Followers: 2)
Chemistry - A European Journal     Hybrid Journal   (Followers: 110)
Chemistry - An Asian Journal     Hybrid Journal   (Followers: 12)
Chemistry and Materials Research     Open Access   (Followers: 15)
Chemistry Central Journal     Open Access   (Followers: 5)
Chemistry Education Research and Practice     Free   (Followers: 4)
Chemistry in Education     Open Access   (Followers: 2)
Chemistry International     Hybrid Journal   (Followers: 1)
Chemistry Letters     Full-text available via subscription   (Followers: 43)
Chemistry of Materials     Full-text available via subscription   (Followers: 141)
Chemistry of Natural Compounds     Hybrid Journal   (Followers: 8)
Chemistry-Didactics-Ecology-Metrology     Open Access  
ChemistryOpen     Open Access   (Followers: 1)
Chemkon - Chemie Konkret, Forum Fuer Unterricht Und Didaktik     Hybrid Journal  
Chemoecology     Hybrid Journal   (Followers: 2)
Chemometrics and Intelligent Laboratory Systems     Hybrid Journal   (Followers: 15)
Chemosensors     Open Access  
ChemPhysChem     Hybrid Journal   (Followers: 6)
ChemTexts     Hybrid Journal  
CHIMIA International Journal for Chemistry     Full-text available via subscription   (Followers: 3)
Chinese Journal of Chemistry     Hybrid Journal   (Followers: 6)
Chinese Journal of Polymer Science     Hybrid Journal   (Followers: 10)
Chromatographia     Hybrid Journal   (Followers: 24)
Chromatography     Open Access   (Followers: 5)
Chromatography Research International     Open Access   (Followers: 5)
Clay Minerals     Full-text available via subscription   (Followers: 9)
Cogent Chemistry     Open Access  
Colloid and Interface Science Communications     Open Access  
Colloid and Polymer Science     Hybrid Journal   (Followers: 8)
Colloids and Surfaces B: Biointerfaces     Hybrid Journal   (Followers: 6)
Combinatorial Chemistry & High Throughput Screening     Hybrid Journal   (Followers: 4)
Combustion Science and Technology     Hybrid Journal   (Followers: 18)
Comments on Inorganic Chemistry: A Journal of Critical Discussion of the Current Literature     Hybrid Journal   (Followers: 1)
Composite Interfaces     Hybrid Journal   (Followers: 3)
Comprehensive Chemical Kinetics     Full-text available via subscription   (Followers: 2)
Comptes Rendus Chimie     Full-text available via subscription  
Comptes Rendus Physique     Full-text available via subscription   (Followers: 1)
Computational and Theoretical Chemistry     Hybrid Journal   (Followers: 10)
Computational Biology and Chemistry     Hybrid Journal   (Followers: 9)
Computational Chemistry     Open Access   (Followers: 2)
Computers & Chemical Engineering     Hybrid Journal   (Followers: 9)
Coordination Chemistry Reviews     Full-text available via subscription  
Copernican Letters     Open Access  
Critical Reviews in Biochemistry and Molecular Biology     Hybrid Journal   (Followers: 4)
Crystal Structure Theory and Applications     Open Access   (Followers: 2)
CrystEngComm     Full-text available via subscription   (Followers: 7)
Current Catalysis     Hybrid Journal   (Followers: 1)
Current Metabolomics     Hybrid Journal   (Followers: 3)
Current Opinion in Colloid & Interface Science     Hybrid Journal   (Followers: 7)
Current Opinion in Molecular Therapeutics     Full-text available via subscription   (Followers: 14)
Current Research in Chemistry     Open Access   (Followers: 7)
Current Science     Open Access   (Followers: 31)
Dalton Transactions     Full-text available via subscription   (Followers: 17)
Detection     Open Access   (Followers: 2)
Developments in Geochemistry     Full-text available via subscription   (Followers: 1)
Diamond and Related Materials     Hybrid Journal   (Followers: 12)
Dislocations in Solids     Full-text available via subscription  
Doklady Chemistry     Hybrid Journal  
Drying Technology: An International Journal     Hybrid Journal   (Followers: 3)
Eclética Química     Open Access   (Followers: 1)
Ecological Chemistry and Engineering S     Open Access   (Followers: 2)
Ecotoxicology and Environmental Contamination     Open Access  
Educación Química     Open Access   (Followers: 1)
Education for Chemical Engineers     Hybrid Journal   (Followers: 4)
EDUSAINS     Open Access  
Elements     Full-text available via subscription   (Followers: 1)
Environmental Chemistry     Hybrid Journal   (Followers: 5)
Environmental Chemistry Letters     Hybrid Journal   (Followers: 2)
Environmental Science & Technology Letters     Full-text available via subscription   (Followers: 3)

        1 2 3 | Last

Journal Cover Chemistry and Materials Research
  [15 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2224-3224 - ISSN (Online) 2225-0956
   Published by IISTE Homepage  [30 journals]
  • Shear Capacity of Steel Fiber Non-Metallic (GFRP) Reinforced Concrete
           Beams Strengthened in Shear Using CFRP Laminates

    • Abstract: A total of ten large –scale concrete beams were constructed and tested under four–point monotonic loading until failure .Nine of these beams were longitudinally reinforced with glass fiber reinforced polymer (GFRP) strengthened with externally bonded CFRP laminate while the remain beam was reinforced with conventional steel bars with web reinforcement as control specimen. To examine the shear behavior, the main parameters investigated in this study included volume fraction of fiber (0, 0.50 , 1.0) % reinforcement and wrapped with two different configurations of CFRP laminate (U-Jacket and sheets are side bonded) were examined .The test results were compared with recommended design code .The results are summarized and analyzed in detail in the paper in terms of shear capacity, cracking pattern and shear resisting contribution of  FRP and steel fiber . Keywords : Beams ,Shear, Steel fiber , GFRP bars ,Strengthening by CFRP .
      Issue No: Vol. 8
       
  • Spectrophotometric Determination of Vanadium (V) Using N–Methyl Cinnamo
           Hydroxamic Acid as Reagent

    • Authors: Surendra K. Rajput, Anita Patel, Kishor N. Bapat
      Abstract: The subject of this research is to study the possibility of novel, rapid highly sensitive and selective spectrphotometric method was proposed for the determination of vanadium (V) using N- methyl cinnamo hydroxamic acid (N-MCHA) as a reagent. The method was based on the formation of purple coloured complex between N–methyl cinnamo hydroxamic acid and vanadium (V). The optimum conditions for the determination were established. The Beer’s law is obeyed for vanadium (V) in the concentration range to 0.2-10.0µg/ml at the maximum absorbance at 480nm. In this method molar absorptivity, Sand ell’s sensitivity, detection limit and quantization limit were reported. The proposed method free from over a wide variety of cations, anions, and complexion interference species. This method was successfully applied to the analysis of vanadium (V) in water, soil, urine, steel and pharmaceutical samples. Keywords: Vanadium (V), N-methyl cinnamo hydroxamic acid, Absorptivity, Complexion.
      Issue No: Vol. 8
       
  • Remediation of Water Contaminated with Cr6+ and Cd2+ Using
           Aluminophosphates Derived from Ashes of Tea Leaves and Pumpkin Seeds

    • Authors: F.M. Maingi, H.M. Mbuvi, M.M. Nganga
      Abstract: Access to clean water is an ever increasing challenge that is not only fuelled by climate change and phenomenally growth in population but also by pollution by heavy metals arises from many sources that include automobiles, purification of metals, smelting industries, paint industries and textile industries. Water pollution is on the increase owed to industrial development and population increases. Commercial adsorbents frequently used as adsorbents in water remediation remain expensive out of reach to majority low income earners. It is therefore essential to develop cheap adsorbent materials capable of removing Cr6+, Cd2+ ions and turbidity from wastewaters. Tea leaves ash (TLA) and pumpkin seeds ash (PSA) was used to generate aluminophosphates materials by hydrothermal reactions for removal of selected heavy metals from contaminated waters. Two adsorbents A and B were also prepared by varying ratios of TLA and PSA. Material A, (APA) was prepared by mixing TLA and PSA as in ratio of 1:1 while material B, (APB) was prepared by mixing them in ratio of 1:2. X-Ray diffraction was used for phase identification and characterization of synthesized material. The effects of metal ion concentration, initial pH, contact time, temperature, shaking speed and dosage on percentage removal of Cd+2, and Cr+6 were determined. The equilibrium adsorption data fitted best in Langmuir isotherm model, as it had the highest value of correlation coefficient. Maximum monolayer adsorption capacities were 45.45 mg/g for cadmium and 50.00 mg/g for chromium using APA. Adsorption capacities of APB were 40.00 mg/g for cadmium and 41.67 mg/g for chromium. Based on adsorption capacities, APA was a better adsorbent than APB. The results from this study shows agro based aluminophosphates are potential adsorbents for remediation of heavy metals from waste waters. Keywords: Adsorption isotherms, Heavy metals, Aluminophosphates, Wastewaters, Adsorbents
      Issue No: Vol. 8
       
  • Synthesis of Co(ІІ) and Cu(ІI) Complexes with NO and N2O2 Ligands
           derived from Salicylaldehyde

    • Authors: Enas YOUSEF, Lena RADWAN, Mona AlSHEKH OTHMAN
      Abstract: Salicylaldehyde has been reacted with aniline and 1,2 phenylendiamine to give the NO and N2O2 Schiff Base type ligands named 2-[(pheneylimino) methyl] phenol (LH) and N,N'-bis( salicylidene)-1,2-phenylenediamine (L''H2). The structures of the ligands were elucidated by FT-IR, 1H-NMR, 13C-NMR and UV-Vis electronic spectra. The coordination behavior of the (LH) and (L''H2) towards Cu(II) and Co(II) ions has been investigated The reaction of the Schiff base ligands (LH), (L''H2) with cobalt (II) and copper (II) ions in 1:1 molar ratio afforded mononuclear metal complexes. Whereas, the reaction of the Schiff base ligand (L''H2) with cobalt (II) and copper (II) ions in 1:2 molar ratio gave binuclear metal complexes. The changes in the selected vibration bands in FT-IR indicate that Schiff bases behave as (NO) bidentate and N2O2 tetradentate ligands and coordinate to metal ions from phenolic oxygen atoms and azomethine nitrogen atoms. Characterization and structure elucidation of the prepared complexes were achieved by FT-IR, UV-Vis electronic spectra. The metal complexes exhibited different geometrical arrangements such as square planner, tetrahedral and octahedral arrangements. Keywords: Salicylaldehyde, Schiff base, mononuclear and binuclear complexes, bidentate and tetradentate ligands
      Issue No: Vol. 8
       
  • Synthesis of Metal Complexes Fe(II), Co(II), Ni(II) of Monodentate Schiff
           Bases Derived from Aromatic Aldehyde

    • Authors: Rawand Alsabra, Lena Radwan
      Abstract: A series of Schiff base ligands NPNA and newly NNNA have been synthesized in equimolar reaction of 1-Naphthylamine hydrochloride with or naphthalene-1-carbaldehyde. The synthesized Schiff bases were used for complexation with different metal ions like Fe(II), Co(II) and Ni(II) by using a molar ratio of ligand: metal as 1:1 and 2:1. The characterization of Schiff bases and newly formed complexes was done by UV–VIS, IR, spectral studies and analytical data. On the basis of the spectral studies show that the Schiff bases act as monodentate and an octahedral geometry has been assigned for Fe(II) and Ni(II) complexes and tetrahedral geometry for Co(II) complexes. Keywords: Schiff bases, Fe(II), Co(II), Ni(II) complexes, spectroscopic studies.
      Issue No: Vol. 8
       
  • Physico-Chemical Properties and Agricultural Potentials of Soils of
           Tembaro Woreda, Kembata Tembaro Zone, Southern Ethiopia

    • Authors: Tadele Buraka
      Abstract: Physico-chemical properties of soils of a particular area is crucial for determination of its potential and constraints based on which appropriate management interventions could be applied for enhanced and sustained agricultural production and productivity. Therefore, the objectives of this study were to determine physico-chemical properties of the soils of Ambukuna microcachment and to identify its potentials and constraints for crop production.  Five sites representing a soil each were opened and profile in each site was described for its morphological, physical and chemical characteristics according to standard procedures. A total of 20 disturbed soil samples and 16 core ring samples were collected from five representative sites. The samples were analyzed in the laboratory for texture, BD, FC, PWP, Soil pH, EC, OC, TN, av.P, av.K, exchangeable bases and CEC. The results of the study showed that the proportions of soil separates varied among sites. The BD varied from 1.13 in the surface site 1 to 1.26 gcm-3 in the site 3. Soil pH ranged from 5.4-6.8 in the surface of all sites with further decrease with depth indicating that the soils in the watershed are strongly acidic to slightly acidic.  The OM and TN contents ranged from 2.96-5.95 and 0.26-0.45% in the surface soil and they were in the low, low to medium and high categories, respectively. Available P was below critical values for all sites except for sites 1 and 4. Exchangeable K was above critical value in all sites.  Exchangeable Mg varied from 2.87 in surface soils of site 3 to 3.98 cmolc kg-1 in the surface soils of site 4. The observation with exchangeable K and Mg implies that there is leaching phenomenon in the study area. Ca ranged from 5. 37 cmolc kg -1 in site 5 to 16.80 cmolc kg -1 in site 2. The CEC from 19.22 cmolc kg -1 soil in surface of  site 5  to 36.43 cmolc kg-1 soil  in the surface soil site 1 indicating they are in the medium to high ranges. Most of the soil physical and some of the chemical characteristics studied could be ranked as good indicating that the area has high potential for agricultural production.  However, acidic soil reaction observed in the study area should attract attention for its management now and in the future.  P is also found to be the most important limiting nutrient for crop production in the area. Thus, management of P is indispensible for enhanced agricultural production in the area. Maintenance and enhancement of organic matter content of the soil in the watershed is also recommended for improving soil quality and sustainability. Keywords: Morphological Characteristics, exchangeable bases, total nitrogen
      Issue No: Vol. 8
       
  • Behavior of Reinforced Concrete Slabs Using Different Amounts of Steel
           Fibers

    • Authors: Aamer Najim Abbas, Esraa Kamal Jaafar
      Abstract: In this research, the effect of steel fibers on the punching shear characteristics of concrete slabs has been studied. Three specimens were poured and tested, one of them poured without steel fibers, and the others two specimens were poured with two different percentages of steel fibers (0.5% and 1%) of total volume. The effect of adding steel fibers has been discovered through studying its impact on the load-deflection behavior, ultimate capacity, cracking capacity, failure mode, ductility and energy absorption of tested specimens.It is concluded that the loading capacity, deflection, ductility and energy absorption increased with increasing steel fibers ratio. Also, the stresses at slab-column connection have been reduced.
      Issue No: Vol. 8
       
  • Analysis of Rice Husk Ash Nanoparticles with Polyethylene Glycol
           Surfactants -6000 Using Coprecipitation Method

    • Authors: Eva Marlina Ginting, Karya Sinulingga, Mukti Hamzah Harahap, Irma Suryani Siregar, Nurdin Bukit
      Abstract: The purpose of this research is the preparation of nano particles of rice husk ash (RHA) and the characterization of the properties of nano-particles with a method that will be prepared coprecipitation.RHA obtained from rice refinery combustion products has white color .This method is performed in the manufacture of nano-particles by means of RHA in ball mill for an hour to get a size of 74 µm and then synthesized with a solution of HCl 2 M ,NaOH 2.5 M and sintesis polyethyelene glycol (PEG) 6000 (1:3;1:4 and 1:5)by methods coprecipitation so it is expected to obtain nanoparticle RHA then be characterized namely by analyzing the composition by means of X-Ray Fluorescent (XRF), morphology analysis by scanning Electron Microscofe (SEM), X-ray structure analysis Difraction (XRD). XRD analysis results obtained by the size of the crystal  RHA  52,22 nm, 47,84 nm and  54,54 nm with a crystal system tetragonal ,XRF analysis results obtained dominant SiO2 content 99,3 % by weight. Morfology results does not occur agglomeration RHA. Keywords: Rice husk ash,PEG-6000, Coprecipitation
      Issue No: Vol. 8
       
  • Development of a Polymeric Composite Jar for the Processing of Ceramic Raw
           Materials.

    • Authors: G. S. Ayuba, A.U. Sullayman, D.S. Yawas
      Abstract: This study has looked into the likelihood of substituting porcelain, the chief material used in constructing mill jar with PVC plastic. Experimental design was adopted for this research. The production of the jar was given much attention based on the size proposed by the study. Materials used for the production of the jar were PVC resin, Stearic acid impregnated with calcium carbonate as a filler locally sourced including the equipment used for the melting of the PVC material. The cast pieces were machined to various sizes required for the production of the jar. The cast and machined PVC parts were brought and glued together in stages with the use of ABRO PVC adhesive. The jar underwent series of test grindings running for more than six hours continually in operation. The cast PVC jar was used to mill 2mm grains of feldspartic materials and 2mm grains of quartz materials including 3kg batch of glaze separately at different occasions to achieve fine particle sizes that passed through an 80 mesh seize. The milled glaze was further applied on two bisque wares (a cup and a mug)  and were fired to a temperature of about 1250⁰C. Impact and Tensile test were carried out on the materials in order to ascertain their strength. 9 joule and 11 joule, 5.6KN and 6.8KN respectively was found to be the differences that exist between the strength of cast and industrially made PVC materials. It was noted that jars made of PVC materials are capable of processing ceramic minerals just like jars made of porcelain. Keywords:  Porcelain-jar, PVC Composite-jar,  Ceramic, Processing, Raw-Materials.
      Issue No: Vol. 8
       
  • Non-Electrochemical Study of Mild Steel Corrosion Inhibition in Sulphuric
           Acid Solution by Using the Cuscuta Reflexa Extract

    • Authors: Dakeshwar Kumar Verma, Fahmida Khan, Vinita Tamrakar
      Abstract: The anticorrosive effect of Cuscuta reflexa Roxb. extract (CRRE) on the mild steel corrosion in 0.5 M H2SO4 employing weight loss measurements. Weight loss measurement shows that inhibitor exhibited the best inhibition efficiency of 92.58 at optimum concentration. The inhibition action of inhibitor is discussed in view of blocking the metal electrode surface by mean of adsorption of the indicator molecules following the Langmuir adsorption isotherm. Scanning electron microscopy (SEM) displays that the inhibitor formed protective film over the mild steel surface. Weight loss measurement as well as SEM, indicate that CRRE can efficiently protect the mild steel from corrosion in 0.5 M H2SO4. Keywords: Adsorption · Corrosion inhibition · Mild steel · CRRE
      Issue No: Vol. 8
       
  • Study of the Inhibitive and Adsorptive Properties of Mild Steel in H2SO4 -
           Boscia senegalensis Plant Environment

    • Authors: Awe; F. E., Idris, S. O., Abdulwahab, M., Emeka, O. O.
      Abstract: The inhibitive and adsorption properties of ethanol extract of Boscia senegalensis for the corrosion of mild steel in H2SO4 were investigated using weight loss, linear polarization, and scanning electron microscopy techniques. From the result, it was found that the corrosion rate of mild steel to decrease with an increase in the concentration of the inhibitor as well as increase with an increase in temperature of the environment. The inhibition efficiency of the inhibitor increases with increasing concentration but decreases with increasing temperature. The inhibition potential of ethanol extract of Boscia senegalensis is attributed to the presence of saponnin, tannin, phlobatanins, anthraquinone, cardiac glycosides, flavanoid, terpene, and alkaloid in the extract. The adsorption of the inhibitor on mild steel surface was found to be exothermic, spontaneous and is best described by Freundlich and Temkim adsorption model. The calculated values of activation energy, enthalpy of activation, entropy of activation, free energy of adsorption and the trend in the variation of inhibition efficiency with temperature, the mechanism of adsorption of the inhibitor by physical adsorption. Ethanol extract of Boscia senegalensis is a good adsorption inhibitor for the corrosion of mild steel in H2SO4. Tafel polarization analyses indicated that studied plant extract is a mixed type inhibitor. Keywords: boscia senegalensis; polarization; adsorption.  
      Issue No: Vol. 8
       
  • Chromatography Method for Simultaneous Determination of Five Synthetic
           Dyes by High Performance Liquid Chromatography

    • Authors: Abd-Alqader Dyab, Basheer Elias
      Abstract: An effective analytical method for the simultaneous determination of five synthetic colorants (i.e., Tartrazine, Brilliant Black, Sunset yellow, Brilliant Blue and Erythrosine) in wine by Reversed-Phase High-Performance Liquid Chromatography with a Diode Array detector was established. The experimental parameters, including the spectrophotometric properties, detection limits and recoveries of studied synthetic colorants, were studied in detail. These parameters were determinated according to statistical methods.Under optimized conditions, the recoveries for all experimental samples were in the range of 98.03–103.5%, and this method had good linearities in the tested ranges with correlation coefficients (r2) >0.9991. The limits of quantification for five synthetic colorants were between 0.054 and 0.1 mg.L−1. Keywords: synthetic dyes, high performance liquid chromatography
      Issue No: Vol. 8
       
  • Journal Cover Page

    • Authors: Journal Editor
      Abstract: Journal Cover Page
      Issue No: Vol. 8
       
  • The Inhibition Effect of Succinic Acid on Corrosion of Low Carbon Steel in
           Hydrochloric Acid at Different Temperatures

    • Authors: Ahlam Al Jouja, Mohammad Ali Al Shaikh, Ahmad Al Yousuf
      Abstract: The corrosion inhibition of ASTM-A240 201 Stainless Steel sheets (LCS) in 1M HCl solution in the presence of Succinic acid at temperature (20,30,40,50,60)°C at concentration between (0.1-10) ppm for two hours were studied using weight loss method. Results show that the inhibition efficiency was increased with the increase of inhibitor concentration and increased with the increase of temperature up to 60ºC . Activation parameters of the corrosion process such as activation energies Ea, activation enthalpies ΔH, and activation entropies ΔS, were calculated. The adsorption of inhibitor follows Langmuir isotherm. Maximum inhibition efficiency obtained was about 96% at 60ºC in the 10 ppm inhibitor concentration Keywords: Corrosion, Corrosion Rate, Weight loss method, Inhibitor, Corrosion Inhibition, Inhibitor Efficiency, LCS (low carbon steel) , green corrosion inhibitors.  
      Issue No: Vol. 8
       
 
 
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