Com cashew shell anacardium occidentale is

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Unformatted text preview: d tests decreased from 52.99 to 38.10 % with efficiency value of 28.10 %. The volume of percolate decreased together with the increasing of soil amount, the presence of urea coated by activated carbon, and the reaction time. According to the data, the coated urea using activated car bon from cashew shell is effective to increase the efficiency of urea application for agricultural purposes. PHY-P3 DETERMINATION OF RADON EXHALATION RATES IN SOME COMMERCIAL PHOSPHATE FERTILIZERS D. Al-Eryani and M. Kadi Department of Chemistry, Faculty of Science, University of King Abdulaziz, Jeddah, Saudi Arabia E-mail: Exhalation rates of Rn have been assessed in most commonly used phosphate fertilizers in agricultural activity. CR-39 nuclear track detectors were used to register alpha tracks resulting from emanated radon and its daughter products from the fertilizer samples. Detectors were exposed to radon for three months. Inductively-coupled plasma mass spectrometry (ICP-MS) was used to determine uranium concentration in the samples. Uranium concentrations lie in the range 0.0 – 44.0 ppm, this range and radon concentrations observed in this study are compared to those observed in other studies in literature. Correlations between concentrations of the two isotopes are a lso examined. 222 217 23rd-25th June 2010 3rd ICYC 2010 Universiti Sains Malaysia PHY-P4 SYNTHESIS, FT-IR SPECTRA AND DFT CALCULATIONS ON STERICALLY CONGESTED 2,2 DISUBSTITUTED INDANE-1,3-DIONE DERIVATIVES 1 Seyed Mohammad Shoaei, Ali Reza Kazemizadeh, Ali Ramazani and Soheila Yousefi 1 2 1 1 Department of Chemistry, Islamic Azad University- Zanjan Branch, P.O. Box 49195-467, Zanjan, Iran 2 Department of Chemistry, Zanjan University, Zanjan, Iran E-mail: Sterically congested 2,2-disubstituted indane-1,3-dione derivatives havebeen synthesized and 1 13 characterized by HNMR, CNMR and FT-IR and elementalanalysis. The B3LYP/HF calculations for computation of FT-IR spectra have beencarried out for the tit...
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This note was uploaded on 02/17/2011 for the course CHEMISTRY 101 taught by Professor Csr during the Spring '11 term at University of Louisville.

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