Journal of Chemistry

Papers

Voulume: 3
Issue: 2
Article No. 21
Synthesis and application of secondary amine derivative of tamarind
Vikal Gupta
Department of Chemistry, Jai Narain Vyas University, Jodhpur (INDIA)
Manisha Sharma
Department of Chemistry, Jai Narain Vyas University, Jodhpur (INDIA)
Jaya and Parag
Department of Chemistry, Jai Narain Vyas University, Jodhpur (INDIA)
Abstract :

Polysaccharide resins which are obtained from natural sources are abundant, cheap & hydrophilic. It was therefore thought worthwhile to prepare chelating resins from naturally occurring polysaccharides like TKP (Tamarind Kernel Powder). Secondary amine derivative of TKP acts as flocculent cum metal ion exchanger & can be used as scavengers for toxic heavy metal ions from effluent.

Carboxy isobutyl amine group was anchored on the TKP backbone in dioxane medium. The ion selective resin has been used in removal of toxic metal ions from effluent of mineral & metallurgical industries.        

 

Keyword : TKD Tamarind Kernel Powder, Polysaccharide, chelating resins, Secondary amine group
DOI : juc
Paper Download Count : 0
View Count : 473
Share
Facebook Twitter Google Plus LinkedIn Reddit
Article No. 22
A study on antimicrobial and preservative Properties of lemon grass oil
Tejas Pavagadhi
Institute of Science & Technology for Advanced Studies & Research Vallabh Vidyanagar - 388120, Gujrat (INDIA)
Jigar Patel
Institute of Science & Technology for Advanced Studies & Research Vallabh Vidyanagar - 388120, Gujrat (INDIA)
Merlin Thomas and Amit Kanabar
Institute of Science & Technology for Advanced Studies & Research Vallabh Vidyanagar - 388120, Gujrat (INDIA)
Abstract :

The inhibitory effect of lemon grass oil on the growth of mould Aspergillus niger and bacteria such as Basillus subtilis and Pseudomonas aeruginosa was evaluated. Preservative action of lemon grass oil was also evaluated for several food grains viz.wheat, millet, barley and green gram. Within a storage period of fifteen days, samples of wheat, millet and barley treated with lemon grass oil showed no physical deterioration. Off colour,off odour and mouldiness however characterized treated green gram and untreated (control) samples of wheat, millet and barley.         

 

Keyword : lemon grass oil, preservative action, anti microbial property, food grains
DOI : juc
Paper Download Count : 0
View Count : 497
Share
Facebook Twitter Google Plus LinkedIn Reddit
Article No. 23
Weight loss corrosion studies of Al6061 – Red Mud metal matrix composites in 1N Hydrochloric acid solution
Gireesha. C
Department of Chemistry, Shedhadripuram First Grade Colleg, Yelahanka, Bangalore - (INDIA)
P.V. Krupakara
Formerly, Department of Chemistry, R.V. College of Engineering, Bangalore (INDIA)
Jayaprakash, H.V.
Department of Chemistry, Global Academy of Technology, Bangalore (INDIA)
Abstract :

This paper deals with the weight loss corrosion characterization of red mud particulate reinforced Al-6061 alloy metal matrix composites (MMCs). Presently, very little research is done to study the environmental behaviour of these alloys. Al-6061 alloys have a relative high strength compared with zinc or aluminium alloys with a moderate melting point. Hence it was used as the matrix alloy in the present research. Red mud being a waste obtained after the extraction of aluminium from its ore it remains inert and is hardly affected by the acidic medium. Red mud particles of size 50-80 microns are used as reinforcement. Experiments were conducted to determine the corrosion rate of the samples in acid. MMC's are prepared according to ASTM standards by liquid melt metallurgy technique using vortex method. Composites containing 2, 4, 6% by weight of red mud and unreinforced matrix were tested using 1 N hydrochloric acid and at room temperature. Specimens are taken in the form of 20mm x 20mm cylinders. The composite was found to be more corrosive resistant than matrix alloy. In each test the corrosion resistance of both alloy composites was found to decrease with the exposure time. The decrease in the corrosion rates of composites when compared to that of matrix alloy is due to the physical barrier created by red mud particles.          

 

Keyword : Al-6061, Red Mud, Vortex, compositeu00a0
DOI : juc
Paper Download Count : 0
View Count : 511
Share
Facebook Twitter Google Plus LinkedIn Reddit
Article No. 24
Thermal Studies of some Azomethines of Sulphonamide and Raceacetophenone
Shipra Baluja
Department of Chemistry, Saurashtra University, Rajkot -360005 Gujrat (INDIA)
Jagdish Movaliya
Department of Chemistry, Saurashtra University, Rajkot -360005 Gujrat (INDIA)
Abstract :

Some new azomethines were synthesized from sulphonamide and raceacetophenone. All the synthesized compounds were characterized by IR, NMR and mass spectral data. The TGA-DTA and DSC analysis were done to determine thermal stability and some kinetic parameters such as order of the reaction (n), energy of activation (E), frequency factor (A), entropy of activation (S) etc.         

Key words : Azomethines, thermal analysis (TGA, DTA, DSC).

Keyword : Azomethines, thermal analysis
DOI : juc
Paper Download Count : 0
View Count : 534
Share
Facebook Twitter Google Plus LinkedIn Reddit
Article No. 25
Some Mixed Ligand Complexometric Studies of Sulphaguanidine on Silver and Mercury Metals
R.N. Sharma
Department of Chemistry, K.N. Govt. P.G. College, Gyanpur-221304 Bhadohi (U.P.) (INDIA)
Rajnish Kumar Chauhan
St. Thomas Gopiganj, Bhadohi (U.P.) 221304 (INDIA)
Ashok Kumar Mishra
St. Thomas Gopiganj, Bhadohi (U.P.) 221304 (INDIA)
Ravi Shankar Tiwari
St. Thomas Gopiganj, Bhadohi (U.P.) 221304 (INDIA)
Sanjay Singh
St. Thomas Gopiganj, Bhadohi (U.P.) 221304 (INDIA)
S.S. Singh
St. Thomas Gopiganj, Bhadohi (U.P.) 221304 (INDIA)
Abstract :

Some air stable mixed ligand complexes with Ag(I), Hg(I) and Hg(II) ions are synthesized with physiologically active sulphaguanidine as primary and thio urea & phenyl thio urea as secondary ligand. These were characterized by various physico-chemical methods. All Ag(I) complexes show linear and all Hg(I) and Hg(II) complexes are tetrahedral in nature.

Keyword : Complexes, phenyl thio
DOI : juc
Paper Download Count : 0
View Count : 537
Share
Facebook Twitter Google Plus LinkedIn Reddit
Article No. 26
Equilibrium constants of mixed ligand complexes of Cu(II), Co(II) with complexones and some amino acids
Sandhya Singh
Department of Chemistry K.N. Govt., P.G. Collge, Gyanpur, Sant Ravidas Nagar, Bhadohi (U.P.) (INDIA)
Anuradha Singh
Department of Chemistry K.N. Govt., P.G. College, Gyanpur, Sant Ravidas Nagar, Bhadohi (U.P.) (INDIA)
R.K. Singh
Department of Chemistry K.N. Govt., P.G. College, Gyanpur, Sant Ravidas Nagar, Bhadohi (U.P.) (INDIA)
Abstract :

Equilibrium constants (log K (log Kof the ligand complexes of the type MAL, where M = Cu(II) and Co(II) A = IMDA, NTA, EDTA or CDTA and L = α-alanine (α-ala) or ß-alanine (ß-­ala), have been determined potentiometrically by Irving-Rossotti approach at 25°C and at an ionic strength, 1=0.2 (mol dm-3 KNO3). The observed trends in equilibrium constants are; (i) Cu(II) > Co(II) (ii) α-ala >ß-ala (iii) IMDA>NTA>EDTA>CDTA with respect to metal ions, secondary ligand (L) and primary ligand (A) respectively. The log K1 values are negative. The equilibrium constants log  and log have also been determined and compared with the log  values.

Keyword : equilibrium constants
DOI : juc
Paper Download Count : 0
View Count : 580
Share
Facebook Twitter Google Plus LinkedIn Reddit
Pages 1 2 3
Ansari Education And Research Society
Facebook Google Plus Twitter
Secured Site