The Solubilities and Diffusion Coefficients of Isobutylene in Dinonyl Phthalate

Houghton, G.; Kesten, A. S.; Funk, James E.; Coull, James

doi:10.1021/j100822a013

Cited by 14 publications

(10 citation statements)

References 3 publications

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“…The latter agrees with observations of Dainton et al [32]. According to Houghton et al [76], the WCh model breaks down even more distinctly (factors 11.5-44), and it is unlikely that the prescription of LR works any better.…”

Section: Comparison Of Diffusion Coefjcients Estimated F O R T-butylsupporting

confidence: 91%

“…s) to that covered in this work. Ratios Dexp/Dcalc of experimental to calculated diffusion coefficients for isobutene, as obtained with the equations of SW or GM and data quoted in [ 181 [76], are shown in Figure 8 as a function of temperature. Obviously, both treatments fail to reproduce the experimental results accurately: The GM model yields diffusion coefficients which are to high by a nearly constant factor (2.5 -3.3).…”

Section: Comparison Of Diffusion Coefjcients Estimated F O R T-butylmentioning

confidence: 99%

“…The question remains, whether the model of GM or the treatments of S W, LR and WCh are more appropriate. Therefore, we test the equations of SW and GM with diffusion coefficients measured by Houghton et al [76] for isobutene in dinonyl phthalate in a similar viscosity range (9 < q < 700 mPa . s) to that covered in this work.…”

Section: Comparison Of Diffusion Coefjcients Estimated F O R T-butylmentioning

confidence: 99%

“…In particular, a set of relatively precise empirical values for the unbranched alkane solvents, and a discussion of basic features of some prescriptions allow us to sift the chaff from the wheat. Since for high solvent viscosities additional criteria are required, the best formulae are finally tested in a direct comparison with experimental diffusion coefficients of isobutene in dinonyl phthalate [76]. The constancy and value of the reaction diameter p of t-butyl is used as an additional, although indirect criterion for the precision of the diffusion coefficients (chapter 5.5).…”

mentioning

confidence: 99%

See 3 more Smart Citations

The kinetics of the bimolecular sel‐reaction of t‐butyl radicals in solution. I. Termination rates

Schuh

Fischer

1978

Helvetica Chimica Acta

125

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SummaryTermination rate constants 2Kt for the self-reaction of t-butyl radicals in twelve different solvents are determined as a function of temperature by kinetic electron spin resonance. In the entire range measured, 7 . 107<2k,<2 . 10'O dm3 mol-' s-I, they are well described by the von Smoluchowski equation for diffusion controlled reactions, using a spin statistical factor, a temperature and solvent independent, isotropic reaction diameter, and diffusion coefficients for t-butyl estimated following empirical or semiempirical prescriptions. Methods for the prediction of diffusion coefficients are critically discussed, and rules for the estimation of termination rate constants of steric unhindered alkyl radicals are suggested.

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Section: Comparison Of Diffusion Coefjcients Estimated F O R T-butylsupporting

confidence: 91%

Section: Comparison Of Diffusion Coefjcients Estimated F O R T-butylmentioning

confidence: 99%

Section: Comparison Of Diffusion Coefjcients Estimated F O R T-butylmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

The kinetics of the bimolecular sel‐reaction of t‐butyl radicals in solution. I. Termination rates

Schuh

Fischer

1978

Helvetica Chimica Acta

125

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“…The distinction is unimportant for the purposes of this paper. 6 Other viscosities available in the literature are di-(2-ethyl-hexyl) phthalate and sebacate (2), dinonyl phthalate (15), n-hydrocarbons (23), ethylene glycol (7).…”

mentioning

confidence: 99%

Temperature Limitations of Stationary Phases in Gas Chromatography.

Hawkes¹,

Mooney²

1964

Anal. Chem.

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The liquid mass transfer coefficient, Ci, is proportional to viscosity: viscosity is of critical importance in the efficiency of glass bead columns and may be so in other columns if C" is low and the column loading and k are high. Catalytic decomposition of the stationary phase by the support is common with polar liquids, especially if hydroxylic. Where this does not occur, the volatility of the stationary phase may be determined by extrapolation of the vapor pressure of the bulk liquid, if the column loading is more than 1 %. Viscosities and volatilities of stationary phases are tabulated.THE MAXIMUM TEMPERATURE at which a stationary phase may be used is determined by its volatility, since excessive volatility shortens the column life and contaminates the gas stream. The lower limit is determined by its viscosity which limits the efficiency of the column, or by its freezing point.

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Diffusion of 2-methyl-propene (1); 1,2-benzenedicarboxylic acid dinonyl ester (2)

Winkelmann

2007

Gases in Gases, Liquids and Their Mixtures

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The Solubilities and Diffusion Coefficients of Isobutylene in Dinonyl Phthalate

Cited by 14 publications

References 3 publications

The kinetics of the bimolecular sel‐reaction of t‐butyl radicals in solution. I. Termination rates

The kinetics of the bimolecular sel‐reaction of t‐butyl radicals in solution. I. Termination rates

Temperature Limitations of Stationary Phases in Gas Chromatography.

Diffusion of 2-methyl-propene (1); 1,2-benzenedicarboxylic acid dinonyl ester (2)

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