RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT (RES J CHEM ENVIRON )

Description

  • Impact factor
    0.64
    Show impact factor history
     
    Impact factor
  • 5-year impact
    0.51
  • Cited half-life
    2.20
  • Immediacy index
    0.25
  • Eigenfactor
    0.00
  • Article influence
    0.04
  • ISSN
    0972-0626

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The biological and medicinal properties of flavonoids have prompted enormous research aimed at developing synthetic routes to these heterocyles. This review focuses on the general structures and classification, food sources, medicinal properties associated with this system. Various synthetic methods developed till now for these compounds are reviewed, particularly those related to the synthesis of flavanones, flavones, aurones, isoflavones and flavonols.
    RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 06/2014; 18(06):1-11.
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    ABSTRACT: Depleting petroleum resources, ever increasing petroleum price and the rapid addition of greenhouse gases into the atmosphere rekindle the researchers to develop new techniques to obtain clean and sustainable energy from the renewable sources. There are many such resources existing in reality and ready to serve the mankind on demand. Out of the many renewable options, wind, solar and biomass energies are considered as the major sources. This paper focuses on biogas technology which is a very attractive way to utilize biomass sources for fulfilling partial energy requirements. Biogas system can provide multiple benefits to the users and aid to protect the environment. Biogas systems produce biogas through digestion of organic materials. All biodegradable biomass materials are suitable for feeding into biomass digesters. Common feedstock includes agricultural wastes, crop residues, animal wastes, forest residues etc. This paper presented an overview of anaerobic digestion process including various stages and microorganisms involved in the biogas production, the parameters that affect biogas production, types of digesters and the byproducts. It also discusses the results of the experiments conducted using various feedstock.
    RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 05/2014; 18(5):80-94.
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    ABSTRACT: The Loktak Lake of Manipur, India is being devastated due to high proliferation of phumdi (combination of different plant species). Composting of phumdi biomass is one of the best alternatives for protecting this lake from higher growth of unwanted weeds. Presence of heavy metals in final compost hinders its use as a soil conditioner but toxicity of heavy metals depends on bioavailability of heavy metals rather than the total concentration. The studies were carried out on physico-chemical parameters, bioavailability and leachability of heavy metals during agitated pile composting of harvested green phumdi biomass with rice husk and cattle manure in different combinations (Trials 1, 2, 3, 4 and 5). Results of present study showed that the maximum temperature about 46.8 ºC was monitored in trial 4 in comparison to other trials. Higher reduction of volatile solid (VS) was observed about 20.4% in trial 4 during the composting process. Total concentration of heavy metals and nutrients was enhanced during the process. Water solubility of nutrients (Na, K, Ca and Mg) was increased. The total Cu concentration was much less than total Zn content but water solubility of Cu (7.37-22.88% of total Cu) was more than Zn (2.95-4.48% of total Zn) which indicates Cu is more toxic than Zn even having very low concentration. Leaching test indicated that the heavy metals concentration in all trials was within the threshold limits for compost use for agriculture application. Present study concluded that composting of phumdi biomass with appropriate proportion of cattle manure is best substitute for reduction of bioavailability and leachability of heavy metals.
    RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 04/2014; 18(4):37-48.
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    ABSTRACT: A simple, efficient and rapid practical procedure for the preparation of various thiazole derivatives 3 has been developed. The present protocol offers the solid phase reaction of various α-bromoketones with a wide variety of thioamides/thioureas in the presence of sodium carbonate at room temperature (within 3-5 minutes). More specifically, it also provides an excellent synthetic route to 2-(pyrazol-1-yl)thiazole derivatives that can not be prepared easily using solvent or acidic conditions mediated Hantzsch thiazole reaction due to the exclusive formation of thiocyanatoketones. Increase in amount of solid catalyst leads to the formation of 4-hydroxythiazole, a cyclic intermediate which is formed in Hantzch thiazole reaction. In conclusion, reaction can be stopped either at intermediate state or is directed towards thiazole formation by changing the amount of base.
    RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 02/2014; 18(02).
  • RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 01/2014; 18(1):7-13.
  • RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 01/2014; 18(2):25-30.
  • RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 01/2014; 18(3):41-46.
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    ABSTRACT: The optimized molecular geometries, vibrational frequencies and infrared intensities were calculated utilizing the Hartree–Fock (HF) and density functional method (DFT/B3LYP) with different basis sets for one of the possible conformer of molecule. Normal coordinate analysis, natural atomic charges was carried out. Dimer cluster’s vibrational spectra calculated using HF and DFT(B3LYP) show the best agreement with the experimental data. The selection of the basis set and the method is of great importance which discussed by making calculations on the vibrational spectrum of pyrogallol. The results of the calculations were applied to simulate the infrared spectra and the assignment of the acquired spectra is presented. There is a good agreement between experimental and theoretical vibration values.
    RESEARCH JOURNAL OF CHEMISTRY AND ENVIRONMENT 12/2013; 17(12):117-128.

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