scholarly journals Revaporization Behavior of Cesium and Iodine Compounds from Their Deposits in the Steam–Boron Atmosphere

ACS Omega ◽  
2021 ◽  
Author(s):  
Muhammad Rizaal ◽  
Shuhei Miwa ◽  
Eriko Suzuki ◽  
Junpei Imoto ◽  
Masahiko Osaka ◽  
...  
Keyword(s):  
Iodine Compounds

scholarly journals Practical Synthesis of 2-Iodosobenzoic Acid (IBA) without Contamination by Hazardous 2-Iodoxybenzoic Acid (IBX) under Mild Conditions

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1897
Author(s):  
Hideyasu China ◽  
Nami Kageyama ◽  
Hotaka Yatabe ◽  
Naoko Takenaga ◽  
Toshifumi Dohi
Keyword(s):  
Aqueous Solution ◽  
Room Temperature ◽  
Practical Method ◽  
Hypervalent Iodine ◽  
Mild Conditions ◽  
Sequential Procedures ◽  
Iodine Compounds ◽  
Practical Synthesis ◽  
Iodosobenzoic Acid ◽  
Lower Temperature

We report a convenient and practical method for the preparation of nonexplosive cyclic hypervalent iodine(III) oxidants as efficient organocatalysts and reagents for various reactions using Oxone® in aqueous solution under mild conditions at room temperature. The thus obtained 2-iodosobenzoic acids (IBAs) could be used as precursors of other cyclic organoiodine(III) derivatives by the solvolytic derivatization of the hydroxy group under mild conditions of 80 °C or lower temperature. These sequential procedures are highly reliable to selectively afford cyclic hypervalent iodine compounds in excellent yields without contamination by hazardous pentavalent iodine(III) compound.

scholarly journals Dipole Moments of the Iodine Compounds Complexed with Some Aliphatic Amines

1975 ◽  
Vol 48 (11) ◽  
pp. 3393-3394 ◽  
Author(s):  
Koichi Toyoda ◽  
Motoo Imai
Keyword(s):  
Dipole Moments ◽  
Aliphatic Amines ◽  
Iodine Compounds

Tribological properties of fast-cutting steel tools and tools modified with iodine compounds

2007 ◽  
Vol 28 (5) ◽  
pp. 409-415
Author(s):  
V. N. Latyshev ◽  
A. G. Naumov ◽  
V. S. Radnyuk
Keyword(s):  
Tribological Properties ◽  
Cutting Steel ◽  
Iodine Compounds

Iodine and Halocarbon Response of Laminaria digitata to Oxidative Stress and Links to Atmospheric New Particle Production

2005 ◽  
Vol 2 (4) ◽  
pp. 282 ◽  
Author(s):  
Carl J. Palmer ◽  
Thorsten L. Anders ◽  
Lucy J. Carpenter ◽  
Frithjof C. Küpper ◽  
Gordon B. McFiggans
Keyword(s):  
Oxidative Stress ◽  
Particle Production ◽  
Marine Boundary Layer ◽  
Oxidative Capacity ◽  
Molecular Iodine ◽  
Laminaria Digitata ◽  
Organic Iodine ◽  
Free Air ◽  
Iodine Compounds ◽  
Iodine Release

Environmental Context.Various organic iodine compounds (including CH3I, CH2ClI, CH2BrI, CH2I2) are present throughout the marine boundary layer as a result of their production from seaweeds, phytoplankton, and photolysis reactions occurring in seawater. In air, these compounds rapidly photolyse to give atomic I which subsequently reacts with ozone to form iodine oxide, potentially leading to perturbations of the tropospheric oxidative capacity and nucleation of atmospheric particles. Recent research has identified molecular iodine as an additional source of iodine atoms to coastal areas. Here we study the relative roles and controls of gaseous organic and molecular iodine release from the seaweed Laminaria digitata. Abstract.Changes in the halocarbon, I2 and particle production of the brown algal kelp Laminaria digitata as a response to different chemical stresses have been investigated. Oxidative stress (caused by either exogenous hydrogen peroxide, gaseous ozone or a solution of oligoguluronates, known elicitors of oxidative stress) caused increased halocarbon and I2 production by the seaweed. The maximum I2 release was observed under exposure to O3 (at several hundred parts per billion by volume (ppbv)), whereas oligoguluronates elicited the highest release of iodine-containing halocarbons including CH2I2. Significantly greater production of I2, compared to CH2I2, was observed at atmospheric levels of ozone. Particle production was observed only when the Laminaria samples were exposed to ozone (up to 16 000 cm−3 s−1 per gram fresh weight (FW) of seaweed with a ~2 min residence time and with a total I atom flux of 1.6 × 108 cm−3 s−1 g−1 FW from photolysis of I2); passing O3-free air over the unstressed seaweed followed by secondary mixing with ozone did not result in any measurable particle formation. Our limited data indicate that ozone elicits abiotic production of I2 from Laminaria and that there is a direct relationship between the amount of I2 released and the number of particles formed. The results support the recent hypothesis that molecular iodine rather than volatile organic iodine (e.g. CH2I2) release from exposed seaweeds is the major source of coastal new particle production.

The synthesis of organic iodine compounds in wheat roots

1959 ◽  
Vol 46 (20) ◽  
pp. 584-584 ◽  
Author(s):  
Z. Böszörményi ◽  
Edith Cseh ◽  
L. Gáspár
Keyword(s):  
Wheat Roots ◽  
Organic Iodine ◽  
Iodine Compounds

Hypervalent iodine in carbon-carbon bond forming reactions. A new reaction of hypervalent iodine compounds and organolithium reagents

Tetrahedron ◽  
1992 ◽  
Vol 48 (41) ◽  
pp. 8881-8890 ◽  
Author(s):  
Derek H.R. Barton ◽  
Joseph Cs. Jaszberenyi ◽  
Karsten Leßmann ◽  
Tibor Timár
Keyword(s):  
Hypervalent Iodine ◽  
Carbon Bond ◽  
Bond Forming ◽  
Carbon Carbon Bond ◽  
Iodine Compounds ◽  
Organolithium Reagents ◽  
Bond Forming Reactions

Studies in polymerization. XIII. The activated initiation of vinyl polymerization by metal carbonyls

1962 ◽  
Vol 268 (1335) ◽  
pp. 553-566 ◽  
Keyword(s):  
Kinetic Mechanism ◽  
Molybdenum Hexacarbonyl ◽  
Metal Carbonyls ◽  
Group Vi ◽  
Radical Intermediates ◽  
Vinyl Polymerization ◽  
Organic Halogen ◽  
Halogen Compounds ◽  
Iodine Compounds ◽  
Reaction Proceeds

It has been found that the hexaearbonyls of group VI metals in the presence of some organic halogen compounds are active initiators of vinyl polymerization. Molybdenum hexacarbonyl is the most active, and halogen compounds containing —CC1 3 , —CBr 3 are generally more effective than those with fewer halogen atoms joined to a single carbon. Fluorine and iodine compounds are inactive. A study has been made of the initiation of the polymerization of methyl methacrylate by the Cr(CO) 6 + CCl 4 system. The polymerization is markedly retarded by carbon monoxide. It is shown that the reaction proceeds through free-radical intermediates, and a kinetic mechanism for initiation is derived (equation (4)) leading to the expression (5) for the rate of chain starting. This quantity may be calculated from (5) with the aid of the numerical values in table 3. Kinetic observations are in satisfactory agreement with this mechanism. The nature of the participating reactions is discussed.

The use of the ceric arsenious acid reaction for the determination of small amounts of iodine or iodine compounds

1972 ◽  
Vol 39 (2) ◽  
pp. 327-338 ◽  
Author(s):  
W. Heerspink ◽  
G.J.Op De Weegh
Keyword(s):  
Arsenious Acid ◽  
Iodine Compounds ◽  
Acid Reaction

Radiolysis of iodine compounds in model systems of PWR

1983 ◽  
Vol 21 (3) ◽  
pp. 289-293 ◽  
Author(s):  
A. Habersbergerová ◽  
B. Bartoníček
Keyword(s):  
Model Systems ◽  
Iodine Compounds
Sign in / Sign up

Export Citation Format

Share Document