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: In this paper, the adsorption of iodate on a copper surface depends on the solution pH and the concentration of iodates, and the dissolution rate does not change significantly when the potassium iodate concentration is > 1 wt %.
Abstract: Copper dissolution was investigated using electrochemical techniques including potentiodynamic scans and electrochemical quartz crystal analysis. The adsorption of iodate on a copper surface depends on the solution pH and the concentration of iodate. IO3- behaves both as an oxidizer and a passivating agent for copper dissolution. At low IO3- concentrations, IO3- acts more like an oxidizer while it passivates the copper surface at higher concentrations. The copper dissolution rate decreases with increasing solution pH and increases with increasing concentration of potassium iodate up to 1 wt %. The dissolution rate does not change significantly when the potassium iodate concentration is >1 wt %. A strong adsorption of IO3- ions on a copper surface has been observed at higher solution pH's and higher iodate concentrations. This may be ascribed to the formation of a thin film of Cu(IO3)2 due to the high surface Cu2+ concentration and higher concentration of IO3- adjacent to the copper surface.
19 citations
TL;DR: In this article, the amount of both citric and ascorbic acid in a given sample of a powdered drink mix is quantitatively determined by titration with sodium hydroxide.
Abstract: This article provides a method to quantitatively determine the amount of both citric and ascorbic acid in a given sample of a powdered drink mix. The total moles of acid in the sample are determined by titration with sodium hydroxide. Moles of ascorbic acid are determined by titration with potassium iodate. Moles of citric acid are determined by difference. Lab time is two–three hours.
19 citations
TL;DR: An indirect colour reaction has been studied for determination of novalgin in tablets and Beer's law is obeyed over the range 1-10 mg of drug.
19 citations
TL;DR: The reproducibility and accuracy of the results calculated on the basis of the two successive end points constitute an interesting new feature of this redox reaction involving the use of KIO3 as a primary standard for the determination of ascorbic acid.
Abstract: Results are given for a two stage oxidation in the ascorbic acid-KIO3 reaction under controlled conditions of acidity. The first step corresponds to the Landolt reaction and the second end point is obtained by the classical Andrews method. The reproducibility and accuracy of the results calculated on the basis of the two successive end points constitute an interesting new feature of this redox reaction involving the use of KIO3 as a primary standard for the determination of ascorbic acid.
19 citations
TL;DR: In this article, the reaction of aromatic acetyl derivatives with potassium iodide and potassium iodate in acetic acid in the presence of sulfuric acid at room temperature gave iodoacethyl derivatives in good yields.
Abstract: The reaction of aromatic acetyl derivatives with potassium iodide and potassium iodate in acetic acid in the presence of sulfuric acid at room temperature gave iodoacethyl derivatives in good yields.
19 citations