Calculated rate constants of the chemical reactions involving the main byproducts SO2F, SOF2, SO2F2of SF6decomposition in power equipment

2016 ◽  
Vol 49 (15) ◽  
pp. 155502 ◽  
Author(s):  
Yuwei Fu ◽  
Mingzhe Rong ◽  
Kang Yang ◽  
Aijun Yang ◽  
Xiaohua Wang ◽  
...  
Keyword(s):  
Chemical Reactions ◽  
Rate Constants ◽  
Power Equipment ◽  
Calculated Rate

scholarly journals A model of tetrahydrofuran low-temperature oxidation based on theoretically calculated rate constants

2018 ◽  
Vol 191 ◽  
pp. 252-269 ◽  
Author(s):  
Yann Fenard ◽  
Adrià Gil ◽  
Guillaume Vanhove ◽  
Hans-Heinrich Carstensen ◽  
Kevin M. Van Geem ◽  
...  
Keyword(s):  
Low Temperature ◽  
Rate Constants ◽  
Low Temperature Oxidation ◽  
Temperature Oxidation ◽  
Calculated Rate

Kinetics of iron(III) hydrolysis and precipitation in aqueous glycine solutions assessed by voltammetry

2009 ◽  
Vol 74 (10) ◽  
pp. 1531-1542 ◽  
Author(s):  
Vlado Cuculić ◽  
Ivanka Pižeta
Keyword(s):  
Ionic Strength ◽  
Complex Formation ◽  
Rate Constants ◽  
Glycine Concentration ◽  
First Order ◽  
Mercury Drop Electrode ◽  
Calculated Rate ◽  
Cathodic Voltammetry ◽  
Kinetics Of ◽  
Voltammetric Measurements

The kinetics of iron(III) hydrolysis and precipitation in aqueous glycine solutions were studied by cathodic voltammetry with a mercury drop electrode. The kinetics was controlled by changing ionic strength (I), pH and glycine concentration. Voltammetric measurements clearly showed formation and dissociation of a soluble Fe(III)–glycine complex, formation of iron(III) hydroxide and its precipitation. The rate constants of iron(III) hydroxide precipitation were assessed. The precipitation is first-order with respect to dissolved inorganic iron(III). The calculated rate constants of iron(III) precipitation varied from 0.18 × 10–5 s–1 (at 0.2 M total glycine, pH 7.30, I = 0.6 mol dm–3) to 2.22 × 10–3 s–1 (at 0.1 M total glycine, pH 7.30, I = 0.2 mol dm–3). At 0.5 M total glycine and I = 0.6 mol dm–3, the iron(III) precipitation was not observed.

Algorithm to evaluate rate constants for polyatomic chemical reactions. II. Applications

2007 ◽  
Vol 28 (13) ◽  
pp. 2111-2121 ◽  
Author(s):  
Javier González ◽  
Xavier Giménez ◽  
Josep Maria Bofill
Keyword(s):  
Chemical Reactions ◽  
Rate Constants

scholarly journals Kinetic analysis of chemical reactions coupled to an enzymic step. Application to acid phosphatase assay with Fast Red

1984 ◽  
Vol 223 (3) ◽  
pp. 633-638 ◽  
Author(s):  
J Escribano ◽  
F García-Carmona ◽  
F García-Cánovas ◽  
J L Iborra ◽  
J A Lozano
Keyword(s):  
Acid Phosphatase ◽  
Chemical Reactions ◽  
Rate Constants ◽  
Diazonium Salt ◽  
Specific Rate ◽  
Fast Red ◽  
Temperature Ranges ◽  
Lag Period ◽  
Ph Range ◽  
Phosphatase Assay

Acid phosphatase assay with alpha-naphthyl phosphate as substrate and the use of diazonium salt (Fast Red TR) for chromophore formation was kinetically analysed as a system of two chemical reactions coupled to an enzymic reaction. This system follows a mechanism defined as enzymic-chemical-chemical (EzCC). The accumulation of chromophore with reaction time presented a marked lag period, which was only dependent on the rate constants of the chemical reactions and was independent of the enzymic step. The specific rate constants of each chemical step were determined in 3.8-5.0 pH and 10-35 degrees C temperature ranges. Thermodynamic parameters of the chemical steps were also obtained. Measurement of acid phosphatase activity can be carried out in the pH range 3.8-5.0 (4.8 was optimal pH) without the need to eliminate the lag period.

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