Determination of the octanol-air partition coefficients (KOA) of fluorotelomer alcohols

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Determination of the octanol-air partition coefficients (KOA) of fluorotelomer alcohols. / Thuens, Sabine; Dreyer, Annekatrin; Sturm, Renate et al.
in: Journal of Chemical & Engineering Data, Jahrgang 53, Nr. 1, 01.2008, S. 223-227.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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Thuens S, Dreyer A, Sturm R, Temme C, Ebinghaus R. Determination of the octanol-air partition coefficients (KOA) of fluorotelomer alcohols. Journal of Chemical & Engineering Data. 2008 Jan;53(1):223-227. doi: 10.1021/je700522f

Bibtex

@article{f7e71b4a2d184ca8abf13b357ac08023,
title = "Determination of the octanol-air partition coefficients (KOA) of fluorotelomer alcohols",
abstract = "Octanol-air partition coefficients (KOA) for five fluorotelomer alcohols (4:2 FTOH, 6:2 FTOH, 8:2 FTOH, 10:2 FTOH, and for the first time 12:2 FTOH) were determined over a temperature range from (5 to 40) °C using a modified generator column method. Octanol-saturated air at a fixed temperature was blown over a column filled with glass spheres which were coated with an FTOH solution. FTOHs partitioning to the gas phase were collected on a trap filled with XAD-2 and eluted with acetone afterward. The concentrations of FTOH were measured by GC-MS using positive chemical ionization. The KOA values were calculated as the ratio of the FTOH concentrations in the octanol to the FTOH concentrations in the air. Values of log KOA at 25 °C ranged from 4.5 (4:2 FTOH) to 6.2 (12:2 FTOH). The calculated internal energies of phase change (ΔUOA) ranged from 42.8 kJ·mol-1 (12:2 FTOH) to 61.1 kJ·mol-1 (4:2 FTOH). The combined uncertainty of the method applied ranged from 8.3 % (4:2 FTOH) to 10.5 % (10:2 FTOH). The expanded uncertainty (P = 95 %) ranged from 18.7 % (4:2 FTOH) to 38.7 % (10:2 FTOH), respectively.",
keywords = "Chemistry",
author = "Sabine Thuens and Annekatrin Dreyer and Renate Sturm and Christian Temme and Ralf Ebinghaus",
year = "2008",
month = jan,
doi = "10.1021/je700522f",
language = "English",
volume = "53",
pages = "223--227",
journal = "Journal of Chemical & Engineering Data",
issn = "0021-9568",
publisher = "American Chemical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Determination of the octanol-air partition coefficients (KOA) of fluorotelomer alcohols

AU - Thuens, Sabine

AU - Dreyer, Annekatrin

AU - Sturm, Renate

AU - Temme, Christian

AU - Ebinghaus, Ralf

PY - 2008/1

Y1 - 2008/1

N2 - Octanol-air partition coefficients (KOA) for five fluorotelomer alcohols (4:2 FTOH, 6:2 FTOH, 8:2 FTOH, 10:2 FTOH, and for the first time 12:2 FTOH) were determined over a temperature range from (5 to 40) °C using a modified generator column method. Octanol-saturated air at a fixed temperature was blown over a column filled with glass spheres which were coated with an FTOH solution. FTOHs partitioning to the gas phase were collected on a trap filled with XAD-2 and eluted with acetone afterward. The concentrations of FTOH were measured by GC-MS using positive chemical ionization. The KOA values were calculated as the ratio of the FTOH concentrations in the octanol to the FTOH concentrations in the air. Values of log KOA at 25 °C ranged from 4.5 (4:2 FTOH) to 6.2 (12:2 FTOH). The calculated internal energies of phase change (ΔUOA) ranged from 42.8 kJ·mol-1 (12:2 FTOH) to 61.1 kJ·mol-1 (4:2 FTOH). The combined uncertainty of the method applied ranged from 8.3 % (4:2 FTOH) to 10.5 % (10:2 FTOH). The expanded uncertainty (P = 95 %) ranged from 18.7 % (4:2 FTOH) to 38.7 % (10:2 FTOH), respectively.

AB - Octanol-air partition coefficients (KOA) for five fluorotelomer alcohols (4:2 FTOH, 6:2 FTOH, 8:2 FTOH, 10:2 FTOH, and for the first time 12:2 FTOH) were determined over a temperature range from (5 to 40) °C using a modified generator column method. Octanol-saturated air at a fixed temperature was blown over a column filled with glass spheres which were coated with an FTOH solution. FTOHs partitioning to the gas phase were collected on a trap filled with XAD-2 and eluted with acetone afterward. The concentrations of FTOH were measured by GC-MS using positive chemical ionization. The KOA values were calculated as the ratio of the FTOH concentrations in the octanol to the FTOH concentrations in the air. Values of log KOA at 25 °C ranged from 4.5 (4:2 FTOH) to 6.2 (12:2 FTOH). The calculated internal energies of phase change (ΔUOA) ranged from 42.8 kJ·mol-1 (12:2 FTOH) to 61.1 kJ·mol-1 (4:2 FTOH). The combined uncertainty of the method applied ranged from 8.3 % (4:2 FTOH) to 10.5 % (10:2 FTOH). The expanded uncertainty (P = 95 %) ranged from 18.7 % (4:2 FTOH) to 38.7 % (10:2 FTOH), respectively.

KW - Chemistry

UR - http://www.scopus.com/inward/record.url?scp=40949142721&partnerID=8YFLogxK

U2 - 10.1021/je700522f

DO - 10.1021/je700522f

M3 - Journal articles

AN - SCOPUS:40949142721

VL - 53

SP - 223

EP - 227

JO - Journal of Chemical & Engineering Data

JF - Journal of Chemical & Engineering Data

SN - 0021-9568

IS - 1

ER -

DOI