Results 271 to 280 of about 70,914 (313)
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Oxidation and Decomposition Kinetics of Thiourea Oxides
The Journal of Physical Chemistry A, 2007In this report the decomposition and oxidation kinetics of thiourea dioxide and thiourea trioxide are investigated with a reversed-phase ion-pair high-performance liquid chromatography (HPLC) method. The HPLC method allows us to simultaneously determine and quantify several sulfur-containing reagents such as (NH2)2CSO2, (NH2)2CSO3, (NH2)2CO, and SO3(2-)
Qingyu, Gao +3 more
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Kinetics of Peroxiredoxins and their Role in the Decomposition of Peroxynitrite
2007Methodologies and results of studies on the kinetics of peroxiredoxins (Prx) are reviewed. Peroxiredoxins are broad-spectrum peroxidases that catalyze the reduction of H2O2, organic hydroperoxides and peroxynitrite by thiols. Their catalytic cycle starts with the oxidation of a particularly reactive cysteine residue (C(P)) to a sulfenic acid derivative
Madia, Trujillo +4 more
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Thermodynamics and kinetics of NaAlH4 nanocluster decomposition
Physical Chemistry Chemical Physics, 2012Reactive nanoparticles are of great interest for applications ranging from catalysis to energy storage. However, efforts to relate cluster size to thermodynamic stability and chemical reactivity are hampered by broad pore size distributions and poorly characterized chemical environments in many microporous templates.
Raghunandan K, Bhakta +6 more
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Roaming Radical Kinetics in the Decomposition of Acetaldehyde
The Journal of Physical Chemistry A, 2009A novel theoretical framework for predicting the branching between roaming and bond fission channels in molecular dissociations is described and applied to the decomposition of acetaldehyde. This reduced dimensional trajectory (RDT) approach, which is motivated by the long-range nature of the roaming, bond fission, and abstraction dynamical bottlenecks,
Lawrence B, Harding +2 more
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The Kinetics of Clay Decomposition
Clay Minerals, 1949The use of thermal analysis for the identification of clay minerals differs from its use for the determination of phase transitions in that the latter are, in theory at least, reversible and occur at definite temperatures while the dehydration reactions utilized in the identification of clays are monotropic, irreversible decompositions proceeding at a ...
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Kinetic Modeling of the Thermal Decomposition of Ammonia
Combustion Science and Technology, 2000A detailed N/H reaction mechanism has been developed and validated in comparison with experimental data for ammonia pyrolysis in shock waves (Davidson et al., Int. J. Chem. Kinet, 1990, 22:513). It has been shown that incorporation of the reactions with N2H3 and N2H4 into the mechanism significantly influences calculated rise-time and peak ...
Konnov, Alexander, De Ruyck, Jacques
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A Mechanistic and Kinetic Study on the Decomposition of Morpholine
The Journal of Physical Chemistry A, 2012The combustion chemistry of morpholine (C(4)H(8)ONH) has been experimentally investigated recently as a representative model compound for O- and N-containing structural entities in biomass. Detailed profiles of species indicate the self-breakdown reactions prevailing over oxidative decomposition reactions.
Altarawneh, M., Dlugogorski, B.Z.
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THE KINETICS OF THE THERMAL DECOMPOSITION OF DISULPHUR DECAFLUORIDE
Canadian Journal of Chemistry, 1951The thermal decomposition of the gas disulphur decafluoride has been studied in a metal reactor. Analytical evidence showed that the reaction proceeds according to the equation S2F10 = SF6 + SF4.The reaction was found to be largely homogeneous, as the heterogeneous reaction accounted for less than 5% of the total process.
W R, TROST, R L, McINTOSH
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Bromamine Decomposition Kinetics in Aqueous Solutions
Environmental Science & Technology, 2004The objectives of this study are to investigate the kinetics of bromamine decomposition and to identify the corresponding relevant reactions. Experiments were performed with a stopped-flow spectrophotometer system. Experimental variables investigated included pH (6.5-9.5), bromamines concentration (0.15-0.50 mM), ammonia to bromine ratio (5-100), and ...
Hongxia, Lei +2 more
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Kinetics of spinodal decomposition in one dimension
Physical Review B, 1988The kinetics of spinodal decomposition have been investigated in a one-dimensional kinetic Ising model by Monte Carlo simulation techniques. Three kinetic regimes can be clearly identified following relatively deep quenches from a random state. An early-time regime characterized by temperature-independent growth of the average domain size evolves to a $
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