Thermodynamic and thermal properties of polychlorinated compounds: The vapor pressures and flow tube kinetics of ten dibenzo-para-dioxines

Rordorf, B.F.

doi:10.1016/0045-6535(85)90209-7

Cited by 56 publications

(23 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rordorf, however, has measured some PCDD/Fs vapour pressures by the gas saturation method. [4][5][6][7] Knudsen effusion method is one of the most accurate techniques for measuring the vapour pressure of a low-volatility substance, and has long been employed for this. There are numerous references using this method, and many researchers have used it to determine the low vapour pressures of organic compounds, [8][9][10][11] although it has still not been applied * Corresponding author; E-mail: lixw@mail.iamp.tohoku.ac.jp for PCDD/Fs.…”

Section: Introductionmentioning

confidence: 99%

Vapour Pressure Determination for Dibenzo-p-dioxin, Dibenzofuran, Octachlorodibenzo-p-dioxin and Octachlorodibenzofuran Using a Knudsen Effusion Method

Shibata

Kasai

et al. 2002

Mater. Trans.

View full text Add to dashboard Cite

A new apparatus with Knudsen effusion method especially designed for the vapour pressure measurements of dioxin congeners and other POPs is described. Crystalline benzoic acid and anthracene were first used to test the new designed apparatus. The vapour pressure and enthalpy results of the two reference compounds were found in good agreement with accepted literature data. The vapour pressure and enthalpy results of crystalline DD, DF, OCDD and OCDF determined with the new apparatus are presented, and compared with the literature data measured with other methods.

show abstract

Section: Introductionmentioning

confidence: 99%

Vapour Pressure Determination for Dibenzo-p-dioxin, Dibenzofuran, Octachlorodibenzo-p-dioxin and Octachlorodibenzofuran Using a Knudsen Effusion Method

Shibata

Kasai

et al. 2002

Mater. Trans.

View full text Add to dashboard Cite

show abstract

“…Observing table 1, it can be found that, for selected PCDD/Fs, the P S values measured by Li et al [31] are higher than the predictions of Rordorf [17] by a factor of about 10. As the GC-RI and QSPR methods of the current study are based on the experimental data of Rordorf [17,29,30] and Li et al [31], it is not surprising that the log P L values predicted by the current study are higher than those of Wang and Wong [19,20] and Govers and Krop [16]. The P L values used by Mader and Pankow [13] for model development were converted from their newly measured P S values.…”

Section: Comparison Of P L Values From Different Researchers and Methodsmentioning

confidence: 88%

“…Recently Li et al [31] developed a mass-loss Knudsen effusion technique to measure P S values for 17 PCDDs (including dibenzo-p-dioxin) and 5 PCDFs (including dibenzofuran). As concluded by Li et al [31], their P S values are consistent with those of Rordorf [17,29,30]. These P S values were converted to P L using the following equation [8],…”

Section: Gc-ri Methodsmentioning

confidence: 89%

“…The P L values used by Wang and Wong [19,20] and Govers and Krop [16] as reference compounds or training set, were approximate to the P L values converted from P S measured or predicted by Rordorf [17,29,30]. Rordorf et al [43] stated that they underestimated P S values at 258C for penta-to hepta-chlorinated PCDD/Fs by factors of 2 -3.…”

Section: Comparison Of P L Values From Different Researchers and Methodsmentioning

confidence: 99%

“…Rordorf [17,29,30] determined P S values of 11 PCDDs (including dibenzo-p-dioxin) and 4 PCDFs (including dibenzofuran) using the gas saturation method. Recently Li et al [31] developed a mass-loss Knudsen effusion technique to measure P S values for 17 PCDDs (including dibenzo-p-dioxin) and 5 PCDFs (including dibenzofuran).…”

Section: Gc-ri Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of subcooled liquid vapor pressures of polychlorinated dibenzo-p-dioxins and dibenzofurans predicted by QSPR and GC-RI methods

Ding

Chen

Qiao

et al. 2005

SAR and QSAR in Environmental Research

View full text Add to dashboard Cite

Subcooled liquid vapor pressures (P(L)) are of great importance for assessing the persistent behavior of organic pollutants. As P(L) cannot be determined by direct experiments, it is of interest to develop and evaluate various predictive methods. In the current study, gas chromatography retention index (GC-RI) and quantitative structure-property relationship (QSPR) methods were used to develop predictive models for P(L) of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). The model development was based on P(L) values converted from consistent experimental solid vapor pressures (P(S)). The P(L) values predicted by the two methods are highly consistent with each other, and in-between sets of values predicted by others. Since the QSPR method can be regarded as independent of experiments, and can be used to interpret intermolecular interactions that govern the magnitude of P(L), it may be superior to the GC-RI method.

show abstract

Polychlorierte Dibenzo‐p‐dioxine und Dibenzofurane

Hertz

Rotard

2004

Bodengefährdende Stoffe: Bewertung ‐ Stoffdaten ‐ Ökotoxikologie ‐ Sanierung

View full text Add to dashboard Cite

Polychlorierte Dibenzo‐p‐dioxine und Dibenzofurane, auch häufig unter dem Sammelbegriff Dioxine zusammengefasst, gehören zu den tricyclischen chlorierten aromatischen Ethern (PCDF, polychlorierte Dibenzofurane) bzw. Diethern (PCDD, polychlorierte Dibenzo‐p‐dioxine). Es existieren 75 PCDD sowie 135 PCDF, die fast immer in der Umwelt als Kongenerengemische mit unterschiedlicher Zusammensetzung vorkommen. Dioxine wurden nie großtechnisch produziert, sondern gelangen hauptsächlich durch Verbrennungsprozesse in die Umwelt. Auch wenn in der öffentlichen Sichtweise Dioxine als die giftigsten Stoffe gelten, ist ihr Gefahrenpotenzial in den im Boden vorkommenden Gehalten als eher gering einzustufen. Problematisch ist ihre lange Verweildauer im Boden.

show abstract

Thermodynamic and thermal properties of polychlorinated compounds: The vapor pressures and flow tube kinetics of ten dibenzo-para-dioxines

Cited by 56 publications

References 2 publications

Vapour Pressure Determination for Dibenzo-p-dioxin, Dibenzofuran, Octachlorodibenzo-p-dioxin and Octachlorodibenzofuran Using a Knudsen Effusion Method

Vapour Pressure Determination for Dibenzo-p-dioxin, Dibenzofuran, Octachlorodibenzo-p-dioxin and Octachlorodibenzofuran Using a Knudsen Effusion Method

Comparison of subcooled liquid vapor pressures of polychlorinated dibenzo-p-dioxins and dibenzofurans predicted by QSPR and GC-RI methods

Polychlorierte Dibenzo‐p‐dioxine und Dibenzofurane

Contact Info

Product

Resources

About