Journal of Chemistry

Papers

Voulume: 4
Issue: 1
Article No. 1
INHIBITIVE EFFECT OF MERCAPTO OXADIAZOLES ON THE CORROSION OF ZA-27 ALLOY IN ACID MEDIA
Pruthviraj R.D.
Research Scholar, Department of Chemistry, Dr. MGR, Educational and Research Institute, Chennai- Tamil Nadu (INDIA)
Abstract :


The inhibition of corrosion of ZA-27 alloy in 1M hydrochloric acid and 1M sulphuric acid by synthesized mercapto oxadiazoles was studied using weight loss method. Results obtained revealed that the synthesized compounds are efficient inhibitors. Generally inhibition efficiency increases with increasing inhibitor concentration and decreasing temperature. The synergistic effect of halide ions on the inhibition of oxadiazoles was also investigated.
 

Keyword : Mercapto oxadiazoles,, inhibition efficiency
DOI : juc
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Article No. 2
Validated liquid chromatographic method for the determination of tramadol in pharmaceutical dosage forms and human plasma
Anton Smith A
Department of Pharmacy, Annamalai University, Annamalainagar- 608002 Tamilnadu (INDIA)
Manavalan R.
Department of Pharmacy, Annamalai University, Annamalainagar- 608002 Tamilnadu (INDIA)
Kannan K.
Department of Pharmacy, Annamalai University, Annamalainagar- 608002 Tamilnadu (INDIA)
Rajendiran N.
Department of Pharmacy, Annamalai University, Annamalainagar- 608002 Tamilnadu (INDIA)
CAS in Marine Biology, Annamalai University, Parangipettai - 608 502 Tamilnadu (INDIA)
Abstract :

 

 

A simple and reliable liquid chromatographic method has been developed for the determination of tramadol HCl in the pharmaceutical preparation and biological fluids. The fluorescence of the product was found to have excitation at lmax 272 nm and emission at lmax 298 nm. The method shows high sensitivity with linearity range from 0.07 to 0.4 µg/ml. The lower limit of detection (LOD) was found to be 1.63 x 10-2 µg/ml, 4.79 x 10-1 µg/ml and limit of quantification (LOQ) was found to be 4.95 x 10-2 µg/ml, 1.45x 10-2 µg/ml in formulation and biological fluids respectively. The different experimental parameters affecting the fluorescence intensity were carefully studied and optimized. The proposed method was applied successfully for determination of tramadol in the pharmaceutical preparation and biological fluids. The percentage recovery was found to be 101.3347 ±0.7991; 101.196 ± 1.382 for formulation and biological fluids respectively.

 

Keyword : liquid chromatographic, determination of tramadol, pharmaceutical dosage
DOI : juc
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Article No. 3
Biological activities of complexes of Ruthenium(III) with Schiff bases derived from salicylidinephenylenediamine derivatives
K.P. Balasubramanian
Department of Chemistry, Gobi Arts & Science College, Gobichettipalayam - 638453 (T.N.)
S. Manivannan
Department of Chemistry, Sri Ramkrishna Mission Vidyalaya College of Arts & Science College, Coimbatore - 641 020 (T.N.)
V. Chinnusamy
Department of Chemistry, Sri Ramkrishna Mission Vidyalaya College of Arts & Science College, Coimbatore - 641 020 (T.N.)
Abstract :

 A new series of mixed ligand hexa coordinated ruthenium(III) Schiff base complexes of the type [RuX2(B)(L)] (B = PPh3 or AsPh3, X= Cl or Br; L= monobasic tridentate Schiff base derived from the condensation of salicylidinephenylene diamine with acetone, acetaldehyde, benzaldehyde) All the complexes have been exhibited to antibacterial study.
 

 

Keyword : Tridentate Schiff base, complexes and antibacterial studies.
DOI : juc
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Article No. 4
SYNTHESIS AND ANTICONVULSANT ACTIVITY OF 1-[5-(SUBTITUTED ARYL)-1, 3, 4-THIADIAZOL-2-YL]-3-(SUBSTITUTED ARYL) THIOUREAS
Nadeem Siddiqui
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi - 110062 (INDIA)
Mohammed Faiz Arshad
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Jamia Hamdard, Hamdard Nagar, New Delhi - 110062 (INDIA)
Abstract :


A series of substituted 1, 3, 4-thiadiazoles (3a-w) were prepared by oxidative cyclization of aryl substituted thiosemicarbazones. Synthesized compounds were identified on the basis of their spectral data. The compounds 3a, 3e, 3m, 3n, 3o, 3p and 3v showed more lipophilic character and moderate protection in MES test whereas compounds 3d and 3e were also lipophilic and less active. Some of the compounds have shown up to 83 % protection and obviously may have very good future commitment.
 

Keyword : Thiadiazole, Anticonvulsant, Neurotoxicity
DOI : juc
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Article No. 5
Synthesis and Characterization of Some Stable Cationic Compounds of Arsenic (v) with 1-Substituted- tetrazoline-5-thione
R.N. Pandey
P.G. Department of Chemistry, College of Commerce Patna (INDIA) 800020 (BIHAR)
D.K. Sharma
P.G. Department of Chemistry, College of Commerce Patna (INDIA) 800020 (BIHAR)
A.K. Nag
P.G. Department of Chemistry, College of Commerce Patna (INDIA) 800020 (BIHAR)
S.Narayan
P.G. Department of Chemistry, College of Commerce Patna (INDIA) 800020 (BIHAR)
P.G. Department of Chemistry, College of Commerce Patna (INDIA) 800020 (BIHAR)
Abstract :

1-Substituted tetrazoline-5-thiones (LH) interact with their thiol tautomeric form with As (v) forming compounds having formula [AsL5] (LH = 1-Substituted tetrazoline -5- thiones). All compounds were monomeric, non-electrolyte having preferential triangular bipyramidal configuration. The four characteristic thiomide bands of the ligand have been used as diagnostic for arsenic - ligand bonding. The 1H NMR Spectra is carried out and interpreted.

Keyword : Synthesis and Characterization, Some Stable Cationic Compounds
DOI : juc
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Article No. 6
Toluidines as corrosion inhibitors for Zinc in Nitric Acid
R. T. Vashi
Department of Chemistry, Navyug Science College, Rander Road, SURAT -395009 Gujarat (INDIA)
S.A. Desai
Department of Chemistry, Arts, Science and Commerce College, Kholwad, Kamraj Ghar Rrasta SURAT - 394185 (INDIA)
Piyush S. Desai
Department of Chemistry, Arts, Science and Commerce College, Kholwad, Kamraj Ghar Rrasta SURAT - 394185 (INDIA)
Abstract :

The corrosion of zinc in nitric acid containing toluidines has been studied at different acid concentration, inhibitor concentration and temperature. In acid, corrosion increases with concentration of acid and with temperature. At constant acid concentration, the inhibition efficiency (I.E.) of toluidines increases with concentration. At constant inhibitor concentration, the I.E. increases with the concentration of acid. At 40 mM inhibitor concentration in 0.15 M HNO3 acid at 301 K for 24 h immersion period, the I.E. decrease in the order :
m-toluidine (90.0%) > p-toluidine (89.7%) > o-toluidine (71.0%). As temperature increases, the rate of corrosion increases, while percentage of inhibition decreases. The mode of inhibition action appears to be chemisorption since the plot of log (q/1-q) versus log C gives straight line which suggest that the inhibitors cover both the anodic and cathodic regions through general adsorption following the Langmuir isotherm. Anodic and cathodic galvanostatic polarization curves show little anodic but significant cathodic polarization.
 

 

Keyword : Corrosion, Zinc, Nitric acid, Toludines.
DOI : juc
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Article No. 7
Physico Chemical study and assessment of quantitative generation of Hospital waste at Khan Shakir Ali Khan Hospital Bhopal
Monika Jain (mona_raj_2004@yahoo.com)
Maulana Azad National Institute of Technology, (MANIT) , Bhopal (INDIA)
Praveen Jain
Institute of basic Science and Information Technology M.P. Bhoj (Open) University, Bhopal
Nidhi Jain
Deptt. of Pharmacy, RKDF, College, Bhopal (INDIA)
Abhay Pandey
Deptt. of Chemistry, Govt. SGS PG College Ganj Basoda (INDIA)
Abstract :

Waste which is generated during the medical research work, production and testing of biological diagnosis, treatment or immunization of human being and animals termed as "hospital waste" Improper handling and management of Hospital waste can spread infection and pollute air, water and soil. When infections hospital waste mixed with general non infections waste or municipal waste it makes the whole waste infectious Improper treatment of infectious hospital waste can also spread infection and communicable diseases among the hospital employees, patients municipal workers and general public. Hospital waste can also cause diseases like AIDS, hepatitis B & C, skin infection etc. Reuse of disposable items, needles, catheters, IV-sets and dialysis sets is also a major problem which must be solved within time. So it is important to adopt proper scientific methods of waste handling, management and its safe disposal or recycling. The present paper discussing the problem of hospital waste management in Bhopal city and management strategy to be adopted to solve this problem.

Keyword : Physico Chemical study, assessment of quantitative generation
DOI : juc
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Article No. 8
Microstructure characterization of Cobalt-Chromium-HAP after corrosion test
J.B. Shamsul
School of Materials Engineering, Universiti Malaysia Perlis
A.Z. Nur Hidayah
Komplacks pusat Pengajjan 2, Taman Muhibbah, Hejawi, 02600 Areu, Perlis (Malaysia)
C. M. Ruzaidi
Komplacks pusat Pengajjan 2, Taman Muhibbah, Hejawi, 02600 Areu, Perlis (Malaysia)
Abstract :

Cobalt-chromium-HAP (hyroxyapatite) biomaterial system was developed by powder metallurgy technique. Composition of 0 wt. %, 5 wt. %, 10 wt. %, 15 wt. % and 20 wt. % of HAP was blended with cobalt-chromium alloy. The method in fabrication of the samples consists of mixing, blending, pressing and sintering of the samples. The results showed that the most stable sample with less corrosion effect was the Co-Cr alloys without HAP. In general, the corrosion rate growths relatively with the times. In addition, the effect of adding HAP made the samples getting worse, which help the corrosion to grow in the biomaterial system developed.

Keyword : Cobalt-Chromium, corrosion test
DOI : juc
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Article No. 9
Synergistic extraction of acetic acid
T.H. Pavagadhi
Institute of Science & Technology For Advanced Studies & Research, Vallabh Vidyanagar - 388120 Gujarat (INDIA)
J.V. Patel,
Institute of Science & Technology For Advanced Studies & Research, Vallabh Vidyanagar - 388120 Gujarat (INDIA)
Merlin Thomas
Institute of Science & Technology For Advanced Studies & Research, Vallabh Vidyanagar - 388120 Gujarat (INDIA)
Amit Kanabar
Institute of Science & Technology For Advanced Studies & Research, Vallabh Vidyanagar - 388120 Gujarat (INDIA)
Abstract :

 

 

Liquid-liquid extraction one of the most cost effective methods used for separating acetic acid from its aqueous solution.In the present work,extraction of acetic acid is studied using single and mixed solvent systems. The various mixed solvents studied were ethyl acetate+isopropanol, butyl acetate+n-tri-butyl phosphate, ethyl acetate + cyclohexane, hexanol + butyl acetate, hexanol + iso propanol. The results obtained show that high synergisms were obtained for mixed solvents than that for single solvent.

 

Keyword : Synergistic Extraction, Single Solvent, Dual Solvent, extraction of acetic acid.
DOI : juc
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Article No. 10
Indoor NO2 sampling in the Hostels of a University Campus in Calabar, South-Eastern Nigeria
R.A. ETIUMA
Department of Chemistry, University of Calabar, Calabar, Cross River State (NIGERIA)
I.E. UWAH
Department of Chemistry, University of Calabar, Calabar, Cross River State (NIGERIA)
A. U. ETIUMA
Cardithoracic Unit, Department of Surgery, University of Calabar, Cross River State (NIGERIA)
Abstract :

 

Measurement of NO2 in different indoor hostels environments was carried out. Crowcon portable Gasman automatic monitor was used for the monitoring. The highest NO2 concentration of 0.267ppm was obtained in hostels 4 and 8 while the lowest concentration of 0.133 was obtained in a first floor room in hostel 5. The FEPA limit of 0.016ppm for NO2 was exceeded in all the locations sampled in this study. Levels obtained in this study therefore suggest the need for urgent intervention. However, the outdoor concentration of NO2 around the hotels was almost the same as that obtained indoors. This suggests high penetration of indoors of outdoor NO2.
Crowcon monitors.

 

Keyword : Nitrogen dioxide, Air Pollution, Crowcon monitors.
DOI : juc
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