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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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Patent
24 Nov 2004
TL;DR: The biological iodine salt of natural algae is safe, non-toxic and stable, contains several kinds of special nutritive health components, is suitable for replenishing iodine via daily diet and has positive effect in preventing goiter and children's oligophrenia caused iodine deficiency.
Abstract: The nutritious iodine salt of natural algae is superior to available chemical iodine salt with potassium iodate or potassium iodide. The present invention features rich biological iodine material, low cost and simple production process. The biological iodine salt is safe, non-toxic and stable, contains several kinds of special nutritive health components, is suitable for replenishing iodine via daily diet and has positive effect in preventing goiter and children's oligophrenia caused iodine deficiency.

10 citations

Journal ArticleDOI
01 Oct 1987
TL;DR: In this paper, the influence of the potassium iodate concentration on the hydrogen peroxide decomposition in the Bray-Liebhafsky reaction is analyzed by the kinetic observations described in previous publication.
Abstract: The influence of the potassium iodate concentration on the hydrogen peroxide decomposition in the Bray-Liebhafsky reaction is analysed by the kinetic observations described in our previous publication [1]. The overall decomposition of hydrogen peroxide in the presence of KIO3 and H2SO4 is found to follow the first order kinetics, not only with respect to hydrogen peroxide, but also with respect to potassium iodate. The rate constant of the process is evaluated.

10 citations

Journal ArticleDOI
01 Jan 1987-Analyst
TL;DR: A spray reagent for their detection in biological materials by thin-layer chromatography is described, which has no interference from other organochloro insecticides or even carbamate insecticide or from the constituents of visceral extracts.
Abstract: The misuse of sulphur-containing organophosphorus insecticides results in many instances of poisoning. This paper describes a spray reagent for their detection in biological materials by thin-layer chromatography. Sulphur-containing organophosphorus insecticides react with acidified potassium iodate liberating free iodine, which in turn reacts with starch solution to give a blue colour. In alkaline media the colour is intensified and consequently the sensitivity of detection increases. There is no interference from other organochloro insecticides or even carbamate insecticides or from the constituents of visceral extracts (amino acids, peptides, proteins, etc). The limit of detection is ca. 1 µg.

10 citations

Journal ArticleDOI
TL;DR: In this article, slurries containing molybdenum oxide abrasives (MoO2, isoelectric point ∼pH 2) with KIO3 as the oxidizing agent were used to polish copper disks and films, yielding relatively high removal rates.
Abstract: Slurries containing molybdenum oxide abrasives (MoO2, isoelectric point ∼pH 2) with potassium iodate (KIO3) as the oxidizing agent were used to polish copper disks and films, yielding relatively high removal rates. The relatively high copper removal rates observed were due to the in situ generation of I2 by the reaction between KIO3 and MoO2. The surface quality of the polished Cu films, however, was very poor with surface roughness values as high as 140 nm. A second polishing step using a dilute colloidal silica suspension containing H2O2, benzotriazole, and glycine at pH 4 improved the post-polish surface quality, final surface having surface roughness values as low as 0.35 nm.

10 citations

Journal ArticleDOI
TL;DR: When a flour was mixed at 25° into a dough in a nitrogen atmosphere with the addition of iodate, there was a rapid disappearance of thiol groups and of iodates in molar ratio 5:I as discussed by the authors.
Abstract: When a flour was mixed at 25° into a dough in a nitrogen atmosphere with the addition of iodate, there was a rapid disappearance of thiol groups and of iodate in molar ratio 5:I. After that, the disappearance of thiol groups proceeded linearly with time and the disappearance of iodate followed first-order kinetics, the mole ratio increasing from 0.25 to 2. If the mixing was interrupted after 5 min., the oxidation of thiol groups and the consumption of iodate in the resting dough both proceeded linearly with time (mole ratio I:I). Other conditions being constant, iodate additions up to a critical value are consumed quantitatively; a constant fraction of amounts beyond this value is consumed. The critical iodate addition is smaller for mixing in oxygen than in nitrogen, and larger for a reaction time of 45 min. between mixing and analysis than for zero reaction time. An extraction of the flour with light petroleum increases it, provided that mixing is done in nitrogen, while extraction with O.IM-sodium chloride decreases it. The fraction of iodate consumed beyond the critical addition varies bewteen 17 and 38% depending on mixing, atmosphere, reaction time and extractions. The mole ratio thiol oxidised/iodate consumed varies widely with mixing and reaction time. Curves for iodate consumption against iodate addition show a break at the critical addition; this was not detected in curves for thiol oxidised against iodate added. After mixing dough for 5 min. in nitrogen a loss of 2–3 moles of thiol groups per mole of iodate consumed was found for normal and extracted flours and for the sodium chloride extract. The low values obtained for the mole ratio thiol oxidised/iodate consumed might be explained by a reaction between iodate and flour constituents other than thiol groups. It is shown that starch and (probably) the easily extractable lipid fraction are not responsible. The validity of the estimation of the amount of reactive thiol groups by critical iodate addition, as proposed by Bushuk,6 is contested.

10 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20235
202221
202116
202014
201912
201818