B: Chemistry (148)
GJSFR: B
Directional Crystallization Kinetics of Coconut Oil under Temperature Gradient
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 4
The directional crystallization kinetics of coconut oil was studied under the temperature gradient from 13℃ to 15℃. During the crystallization of coconut oil, the overall crystal growth rate Rg decreased over time, but it increased with the growth of temperature difference. While the change of crystallization yields Y first increased then decreased to consta...
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Authors Dr. Jie peng, Xue Bai, Yunzhu Zhang, Xingpeng BaiRead Journal Click Here
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Page No. 1 to 6
Kinetic Studies on Biosorption of Methyl Violet Dye Using Blue Green Algae
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 3
In the present study, the parameters, temperature, adsorbent dose, contact time, adsorbent size and agitation speed were optimized for Methyl violet removal from aqueous medium by using response surface methodology (RSM). The optimum conditions for maximum removal of Methyl Violet from an aqueous solution of 100 mg/L were found as follows: room temperature (33 degrees C), adsorbent dose ...
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Authors Dr. J.Krishnaveni, Dr.N.RenugadeviRead Journal Click Here
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Page No. 7 to 9
The One-Pot Three Components of Iodone, Schiff Base and Epoxide for Synthesis Iodohydrins
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 3
In study we report synthesis Iodohydrines in absence of the complexes Schiff-base Salen Cu, Ni and Co. The experimental results showed both that the catalysts had higher catalytic activity and better epoxide selectivity than the homogeneous catalyst. ...
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Authors Dr. Abolghasem Shameli, AbdolHamid Raeisi, Bahram Pourhasan, Hossein Naeimi, Mohmmad Mehdi GhanbariRead Journal Click Here
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Page No. 17 to 21
Synthesis of Water-soluble single-walled nanotubes by Functionalization Via Esterification
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 3
Water soluble compoundes were attached to single-walled carbon nanotubes (SWNTs) to form watersoluble nano dyes. functionalized SWNTs were then characterized by Fourier Transform Infrared spectroscopy (FT-IR), Raman spectroscopy, scanning electron microscopy (SEM) and UV analysis. The product can be dissolved in water and High-resolution transmission electron microscope images showed tha...
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Authors Dr. Javad Azizian, Mahdieh Entezari, Shahab Zomorodbakhsh, Abolghasem ShameliRead Journal Click Here
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Page No. 11 to 16
Determination of Alumina Oxide in Bauxites by X-ray Fluorescence Analysis
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 3
This study relates to determination of the content of aluminium oxide (%Al2O3) in different types of bauxite by the X-ray fluorescence method (XRF). The samples were prepared in the form of beads by the borax method from bauxite, which had been previously annealed. Standard reference samples of bauxite were used to produce a calibration curve and the calibration curve obtained was with v...
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Authors Dr. Dragana Keselj, Dragica Lazic, Jelena Penavin-Skundric, Slavica Sladojevic, Ljubica VasiljevicRead Journal Click Here
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Page No. 1 to 6
Protective role of sphaeranthus amaranthoides on hepatic marker enzymes
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 2
The ethanolic extract of Sphaeranthus amaranthoides at an oral dosage 500mg/kg body weight exhibited a significant protection against D-galactosamine induced liver damage. Sphaeranthus amaranthoides showed hepatoprotective activity by reducing a D-galactosamine induced alteration in biochemical changes, that was evident by examination of the levels of hepatic marker enzymes. The plant ex...
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Authors Dr. L.Swarna latha , Dr.P.Neelakanta ReddyRead Journal Click Here
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Page No. 47 to 50
EFFECT OF BLANCHING, RIPENING AND OTHER TREATMENTS ON THE PRODUCTION CHARACTERISTICS OF PECTINOLYTIC ENZYMES FROM BANANA PEELS BY ASPERGILLUS NIGER
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 2
Three different strains of Apergillus niger isolated from decayed banana peels in Ibadan metropolis, Nigeria depolymerized citrus pectin. The best strain having pectinolytic activity as indicated by the diameter of clear hydrolyzed zone on the medium plates containing commercial citrus pectin as the sole carbon source was selected among the three strains having the largest zone. This iso...
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Authors Ogunlade Ayodele OluwayemisiRead Journal Click Here
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Page No. 37 to 46
Synthesis of Biologically Important Pyrrole Derivatives in any 13C and 15N Isotope Enriched Form
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 2
Recently the synthesis of [3-13C]-, [4-13C]-, and [11-13C]- porphobilinogen, [15N,13C4]-1H - pyrrole-2,3,5 - tricar - boxylic acid, [1-15N]-3-cyano-4-methyl-1H-pyrrole and [2-13C]- and [3-13C]-cyano-4- methyl-3-pyrrolin-2-one have been published. Incorporation of 13C and 15N in these systems at any position and combination of positions has become accessible. Also mild alkylations of acti...
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Authors Dr. Prativa B. S. Dawadi , Johan LugtenburgRead Journal Click Here
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Page No. 23 to 36
Synthesis And Antibacterial Activities Of Bimetallic Complexes Of Cobalt (II) AND NICKEL (II) ACETOPHENOLATE
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1
Bimetallic complexes of cobalt (II) and nickel (II) acetophenone with tin chloride were synthesized and characterized by elemental analyses, conductivity measurement, magnetic and spectral data. The complexes are 1:2 adducts and non-electrolytes in solution. The ligands and their complexes were screened for antibacterial activities against Staphyloccus aureus and Escherichia coli. Cobalt...
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Authors Dr. A.O.Aliyu , Dr DB MaikajeRead Journal Click Here
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Page No. 21 to 26
Interaction Between Cryptand 222 And TetracyanoethyleneIn Di And Trichlorom Ethane Solutions
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 2
spectrophotometric study concerning the interaction between cryptand 222 as n-donor and TCNE as À-acceptor has been performed in di and tri chloromethane solutions at temperatures 5, 10, 15, and 20°c. The results of continuous variation and mole ratio methods indicate the formation of 1:1 complexes in both solvents and at all temperatures. The stability constants and th...
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Authors Dr. Abolfazl Semnani , Ali Reza Firooz , Leila Kashefi Kheyrabadi ,Hamid Shakoori Langeroodi ,Safieh Heidarizadeh RiziRead Journal Click Here
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Page No. 15 to 21
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Application Of Icp-Oes In The Comparative Analysis Of A Used And Fresh Gasoline Motor Oil
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 2
In a fresh and 14500 km used oil, viscosity, viscosity index, flash point, pour point, specific gravity, color, total acid number, total base number, water content, as well as concentrations of twenty four elements, were determined. The mineral baesd, gasoline motor oil Speedy SL, from Sepahan Oil Company was chosen for study. The physical properties were characterized by ASTM protocols....
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Authors Dr. Behnam Rahimi,Abolfazl Semnani, Alireza Nezamzade Ejhieh , Hamid Shakoori Langeroodi, Massoud Hakim Davood4Read Journal Click Here
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Page No. 9 to 14
Interaction Between Cryptand 222 And TetracyanoethyleneIn Di And Trichlorom Ethane Solutions
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1
A spectrophotometric study concerning the interaction between cryptand 222 as n-donor and TCNE as À- acceptor has been performed in di and tri chloromethane solutions at temperatures 5, 10, 15, and 20°c. The results of continuous variation and mole ratio methods indicate the formation of 1:1 complexes in both solvents and at all temperatures. The stability constants and...
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Authors Dr. Abolfazl Semnani , Ali Reza Firooz, Leila Kashefi KheyrabadiRead Journal Click Here
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Page No. 85 to 92
Inhibition of Mild Steel Corrosion Using Plectranthus tenuiflorus (Shara) Plant as Safe and Green Inhibitor in Acidic solutions
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1
Plectranthus tenuiflorus (Shara) plant was investigated as safe (green) inhibitor on the corrosion of mild steel in 2.0 M H2SO4 solution using weight loss and hydrogen gas evolution technique. The results showed that Shara plant aqueous extract is good inhibitor for mild steel in this medium. The inhibition efficiency increases with the inhibitor concentration and decreases with rising t...
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Authors Dr. Aisha M. Al-Turkustani , Nabeeh M. Al-MarhabiRead Journal Click Here
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Page No. 73 to 84
Application of a new pH-metric Method to the Kinetic study of copolymerization of polysaccharides Fucan N1 with PMMA in presence of Cerium Ce+4 .
Published In: GJSFR Part: B: Chemistry Volume: 12 Issue: 1
The copolymerization of a Poly-Acrylic PMMA with polysaccharide, Fucan N1 and Dextran T70,in presence of a ceric salt used as initiator in acidic medium ,was carried out under the following conditions : Fucan N1=0,5 g; []M.,CAN31063−= , []M2,0HNO3=; temperature =40°C with a relative ratio between the initiator and the monomer , initiator/monomer =1/10. Besides a p...
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Authors Dr. El-Bahri SakriRead Journal Click Here
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Page No. 33 to 44
