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.

Disinfection of microorganisms by use of electrochemically regenerated periodate.

Abstract: A new method for disinfection of microorganisms by electrochemically regenerated periodate was developed. Oxidation of iodate to periodate was observed at 1.25 V versus a silver/silver chloride electrode in a cyclic voltammogram of potassium iodate. When 1.25 V was applied in 1.0 mM potassium iodate, approximately 4-log inactivation of Escherichia coli was observed in 30 min.

Method and composition for detecting odorants in gaseous fuels

Abstract: 1,134,439 Detecting organic sulphides SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 17 Oct, 1967 [19 Oct, 1966], No 47314/67 Heading B1X [Also in Division G1] A reagent for detecting the presence of a saturated organic heterocyclic sulphide in a hydrocarbon, especially thiophane in a hydrocarbon comprises water dry, adsorptive, granular material impregnated with an acidic solution of an alkali metal iodate, a material for forming a colour with iodine and an organic sulphoxide and/or organic sulphone The reagent solution is preferably formed from a solution of potassium iodate in glacial acetic acid and sulphuric acid the solution being mixed with starch solution, palladium chloride, mercuric iodide, distilled water, dimethyl sulphoxide and methylene blue The reagent solution is added to silica gel and the mixture is heated in vacuum The reagent is then packed in a glass tube 12 in zones 12a separated by zones 12b of purified sand One end of the tube is connected to a balloon 14 whilst the other end is connected through a vapourising tube 10, a needle valve 5 and a valve 2 to a cylinder 1 of liquid hydrocarbon Gas is passed through the tube 12 until the balloon, fits snugly within a standard volume ring 15 The zones 12a are then examined, each zone which has completely changed in colour from blue to green denoting a concentration of 10 ppm by weight of thiophane The palladium chloride stabilizes the final colour of the reagent

Appraisal of the Iodate–Sulphuric Acid Wet-Oxidation Procedure for the Estimation of the Caloric Content of Marine Sediments

Abstract: Endothermic reactions of the inorganic fraction of marine sediments and the low organic matter content invalidate the determination of caloric values by bomb calorimetry. However, oxidation of the organic fraction with excess potassium iodate and back titration with sodium thiosulphate provides a suitable method for estimating the caloric value.Contrary to earlier reports, a correction factor for the incomplete combustion of proteins, derived from the Kjeldahl nitrogen content of the sample, must be applied. Interference by the inorganic fraction of the sediment in the titration procedure is allowed for by a control flask containing a sample of the sediment from which the organic matter has been removed by heating in a muffle furnace. Any ferrous sulphide in the sample is oxidized prior to digestion.

Towards the eradication of iodine-deficiency disorders in Brazil through a salt iodination programme.

Abstract: Iodine-deficiency disorders have been a serious public health problem in Brazil because of the failure of a salt iodination programme established in 1953. The reasons for this failure were logistical, e.g., potassium iodide was not supplied to all salt-producers, iodination of salt was largely erratic, and part of the population at risk used only non-refined salt, which was not iodinated. In 1978 a task force was therefore formed to implement measures to eliminate iodine-deficiency disorders from the country. For this purpose, potassium iodate was distributed, free-of-charge, to all salt mills and an iodate dosing spray was supplied without cost to small salt producers. Also, regional laboratories for determining iodine in salt were set up, inspectors made regular visits to the salt mills, and samples of salt from commerce and from the producers were analysed. More than 90% of the samples contained 10-30 mg iodine per kg. In three typical areas of the country with endemic goitre the urinary excretion of iodine increased from an average of less than 40 μg iodine to 125 ± 38 μg iodine per g creatinine. In conclusion, the salt iodination programme was a complete success and could serve as a model for other countries with a high prevalence of iodine-deficiency disorders.