Topic
Iodite
About: Iodite is a research topic. Over the lifetime, 6 publications have been published within this topic receiving 142 citations. The topic is also known as: IO2(-) & [IO2](-).
Papers
TL;DR: A laboratory study of the reaction of O3 at variable iodide (I(-)) concentration (0.010-100 μM) for solutions aerosolized at 25 °C, which reveal remarkable differences in the reaction intermediates and products expected in sea spray for low tropospheric [O3].
Abstract: Halides are incorporated into aerosol sea spray, where they start the catalytic destruction of ozone (O3) over the oceans and affect the global troposphere. Two intriguing environmental problems undergoing continuous research are (1) to understand how reactive gas phase molecular halogens are directly produced from inorganic halides exposed to O3 and (2) to constrain the environmental factors that control this interfacial process. This paper presents a laboratory study of the reaction of O3 at variable iodide (I–) concentration (0.010–100 μM) for solutions aerosolized at 25 °C, which reveal remarkable differences in the reaction intermediates and products expected in sea spray for low tropospheric [O3]. The ultrafast oxidation of I– by O3 at the air–water interface of microdroplets is evidenced by the appearance of hypoiodous acid (HIO), iodite (IO2–), iodate (IO3–), triiodide (I3–), and molecular iodine (I2). Mass spectrometry measurements reveal an enhancement (up to 28%) in the dissolution of gaseous O...
62 citations
7 citations
TL;DR: In this article, a mechanism for the formation of iodite in permanganate mixtures of malonic, citric or malic acid has been suggested, which is based on the idea that iodide is the product in the first stage of the oxidation of iodide, which was further oxidised to iodite or iodate or which may react with the oxidation products of the organic acids.
Abstract: Permanganate oxidises small amounts of iodide to iodite in the presence of malonic, citric or malic acid. The colourless reaction mixtures always have an oxidising capacity equivalent to four times the concentration of the iodide originally taken. In mixtures of permanganate and one of these acids, iodate is reduced to its 2/3 oxidising capacity, showing the formation of iodite. A mechanism for this has been suggested. Iodine is the product in the first stage of the oxidation of iodide, which is further oxidised to iodite or iodate or which may react with the oxidation products of the organic acids. Citric acid probably gives a number of such iodinated products, one of which is solid.
3 citations
TL;DR: In this paper, a review of synthetic applications of hypervalent iodine reagents in the oxidation state +3 in relation to unsaturated carbohydrates is presented, where the Koser reagent or its bis(azido) derivative, fully protected glycals are oxidatively deblocked in the allylic position.
Abstract: Synthetic applications of hypervalent iodine reagents in the oxidation state +3 in relation to unsaturated carbohydrates are reviewed. By using the Koser reagent or its bis(azido) derivative, fully protected glycals are oxidatively deblocked in the allylic position. The reaction furnishes carbohydrate-derived 2,3-dihydro-4H-pyranones, which serve as starting materials for the preparation of C-saccharides, glycosyl stannanes or thromboxane A2-analogues. Alternatively, iodine(III) reagents can be used to oxidize halide anions. The halogen-ate complexes thus generated behave like synthetic equivalents of acyl hypobromite and iodite, respectively, or halogen azides, which can all add to alkenes, including glycals, under very mild conditions.
3 citations
TL;DR: It was concluded that the species observed in the experiment without carrier was the iodite species (IO− 2), as surmised by previous authors.
Abstract: The effect of carriers oil the chemical behavior of 131I produced from the 130Te(n, γ)13lTe 131I processes was investigated with paper electrophoresis, autoradiography and γ-ray spectrometry. If no carrier was added, the chromatograms of the iodine species revealed significant deposits of an unexpected chemical species between the spots of the iodide and iodate species. The addition of either iodate or periodate as carrier converted the species into iodate in the former case, and into iodate and periodate in the latter. Referring to the already known exchange reactions between different iodine species, hence was concluded that the species observed in the experiment without carrier was the iodite species (IO− 2), as surmised by previous authors.
2 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2013 | 1 |
| 1999 | 1 |
| 1998 | 1 |
| 1971 | 1 |
| 1970 | 1 |
| 1965 | 1 |