Results 311 to 320 of about 3,008,459 (388)

Calculating Rate Constants in Forward Drug Transfer Reactions

Journal of Pharmaceutical Sciences, 1973
A simple method for obtaining and processing drug transfer data derived from in vitro model cells such as the Schulman cell is presented. Simplified calculation procedures are developed for determining the rate constants that describe the transfer of the drug through the compartments. Transfer of the acidic drug salicylic acid from a pH 2.0 compartment
W O, Thompson, S T, Christian
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The Reaction Rate Constant of Chlorine Nitrate Hydrolysis

Chemistry, 2001
The first-order rate constant for the decomposition of chlorine nitrate (ClONO2) by water in a cyclic 1:3 complex at stratospheric temperatures is shown to be close to the values for the hydrolysis rate coefficient of chlorine nitrate on an ice surface determined in the laboratory.
T, Loerting, K R, Liedl
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Quantum mechanical rate constants for bimolecular reactions

The Journal of Chemical Physics, 1983
Several formally exact expressions for quantum mechanical rate constants (i.e., bimolecular reactive cross sections suitably averaged and summed over initial and final states) are derived and their relation to one another analyzed. It is suggested that they may provide a useful means for calculating quantum mechanical rate constants accurately without ...
William H. Miller, Steven D. Schwartz, John W. Tromp   +2 more
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Calculations of parabolic reaction rate constants

Oxidation of Metals, 1987
The oxidation kinetics of only a very limited number of pure metals or binary alloys can be described by the simplest parabolic law, Δm2=kpt, Thus for a transient period of faster kinetics, the steady state parabolic law is given by (Δm−Δmi)2 = kp(t−ti) when the initial weight gain Δmi does not contribute to steady state rate control. In such a case, a
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Determination the rate constants of some biexponential reactions

Journal of Biochemical and Biophysical Methods, 2000
Reactions that are described by biexponential functions are typical for many biological processes. The kinetics of these reactions is described by transcendental irrational equations interconnecting the reagent concentrations, time and rate constants.
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Improved Calculation of Quasiequilibrium Reaction Rate Constants

The Journal of Chemical Physics, 1963
The method of steepest descents has been applied to the calculation of the total number of quantum states of a system of harmonic oscillators. The corresponding rate expressions of unimolecular reactions have also been derived.
S. H. Lin, Henry Eyring
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Photochemical properties of trans-1-chloro-3,3,3-trifluoropropene (trans-CHCl═CHCF3): OH reaction rate constant, UV and IR absorption spectra, global warming potential, and ozone depletion potential.

Journal of Physical Chemistry A, 2014
V. L. Orkin, L. E. Martynova, M. Kurylo
semanticscholar   +1 more source

Reaction rate constant of CH2O + H = HCO + H2 revisited: a combined study of direct shock tube measurement and transition state theory calculation.

Journal of Physical Chemistry A, 2014
Shengkai Wang, E. Dames, D. Davidson, R. Hanson   +3 more
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An example of a constant rate reaction

Journal of Chemical Education, 1987
A simple experiment whose rate of reaction (a burning candle) proceeds at constant conditions.
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A general scavenging rate constant for reaction of hydroxyl radical with organic carbon in atmospheric waters.

Environmental Science and Technology, 2013
T. Arakaki, C. Anastasio, Y. Kuroki, H. Nakajima, K. Okada, Yuji Kotani, D. Handa, S. Azechi, Taro Kimura, A. Tsuhako, Y. Miyagi   +10 more
semanticscholar   +1 more source