Topic
Potassium iodate
About: Potassium iodate is a research topic. Over the lifetime, 611 publications have been published within this topic receiving 5940 citations. The topic is also known as: KIO3.
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TL;DR: There is minimal loss of iodine from the salt fortified with potassium iodate when subjected to heating (temperature normally attained during cooling process), according to iodometric titration methods.
Abstract: Iodine deficiency disorders constitute a major public health problem in India. The national IDD control programme (NIDDCP) relies solely on iodine supplementation through fortification of common salt with potassium iodate. However, data regarding iodine loss due to high temperatures of cooking procedure is scarce. Using iodometric titration methods, we calculated iodine content of iodised salt samples subjected to incremental heat up to 350 degree Celsius. The results of the study indicate a gradual but minimal loss of iodine content from the iodised salt samples when subjected to high temperature with a maximum loss noticed being 18.5% at 350 degree Celsius. We conclude that there is minimal loss of iodine from the salt fortified with potassium iodate when subjected to heating (temperature normally attained during cooling process).
14 citations
09 Mar 2011-Journal of Environmental Science and Health Part A-toxic\/hazardous Substances & Environmental Engineering
TL;DR: In the present work, a high capacity anion exchange column was used to efficiently and simultaneously separate traces of oxyhalide disinfection byproducts (DBP) anions and bromide by an ion chromatography system followed by a post-column reaction (PCR).
Abstract: In the present work, a high capacity anion exchange column was used to efficiently and simultaneously separate traces of oxyhalide disinfection byproducts (DBP) anions and bromide by an ion chromatography system followed by a post-column reaction (PCR). The PCR generates in situ hydroiodic (HI) acid from the excess of potassium iodate that combines with bromate from the column effluent to form the triiodide anion detectable by UV/Vis absorbance at 352 nm. The suppressed conductivity cell current was optimized at 70 mA, with a flow rate of 1.0 mL/min and a 9 mM carbonate eluent. Its performance was investigated on a trace-level determination of bromate in ozonated municipal and bottled drinking water. Based on ozonated municipal drinking water matrix, the method detection limit of 0.27 μg BrO(-)(3)/L was evaluated with the Method Quantification Limit (MQL) of 0.89 μg BrO(-)(3)/L. However, in ultrapure water, a MDL of 0.015 μg BrO(-)(3)/L and a MRL of 0.052 μg BrO(-)(3)/L were achieved. The recovery for spiked municipal samples was in the range of 90%-115%.
13 citations
TL;DR: Observations on incorporation of radioactive precursors into bacteria mildly radiosensitized by the above reagents indicated that synthesis of DNA was generally more sensitive than that of protein or RNA.
Abstract: SummaryThe synthesis of DNA, RNA and protein, and the rejoining of DNA strand-breaks and DNA breakdown were studied in cells of Bacillus subtilis γ-irradiated in the presence of iodoacetic acid (I. CH2. COOH), potassium iodide (KI) or potassium iodate (KIO3). Observations on incorporation of radioactive precursors into bacteria mildly radiosensitized by the above reagents indicated that synthesis of DNA was generally more sensitive than that of protein or RNA. A cellular radiosensitizing effect cannot be explained by increase of radiation-induced in situ damage in DNA, because a drug effect was not found on radiation inactivation of transforming DNA. Also, the number of radiation-induced breaks in DNA strand studied by means of alkaline-sucrose gradient centrifugation was very similar in the absence or presence of reagent at the time of irradiation.Studies with KIO3 have shown that the presence of the reagent during irradiation of bacteria considerably reduced rejoining of DNA strand-breaks during subsequ...
13 citations
TL;DR: In this paper, Radiosensitization by Potassium Iodate and Related Compounds is discussed and discussed in terms of radiation biology and related studies in physics, chemistry and medicine.
Abstract: (1969). Radiosensitization by Potassium Iodate and Related Compounds. International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine: Vol. 15, No. 3, pp. 271-274.
13 citations
TL;DR: In this article, a monofunctional weak cation exchanger of tin(IV)-iodophosphate is used for detailed study owing to its highest ion exchange capacity and highest chemical stability.
Abstract: Iodates and iodophosphates of tin(IV), zirconium(IV) and iron(III) have been synthesized under varying conditions and studied their ion exchange behaviour. Among the various ion exchangers synthesized, tin(IV)-iodophosphate is chosen for detailed study owing to its highest ion exchange capacity and highest chemical stability. The most stable sample is prepared by mixing 0.1M stannic chloride, 0.1M potassium iodate and 0.1M potassium dihydrogen orthophosphate solutions in the volume ratio 1:1:2 respectively at pH 0–1. It is a monofunctional weak cation exchanger. Its ion exchange capacity for K+ is 1.6 meq/dry g. The thermal and chemical stabilities of this material have been determined and compared with Zr(IV)-phosphoiodate. Effect of heating on the properties of tin(IV)-iodophosphate has been determined. To explore the separation potential of tin(IV)-iodophosphate Kd values of different metal ions have been determined in organic solvents. A number of important separations of metal ions of indust...
13 citations