Health & Environmental Research Online (HERO)


PFHxA (307-24-4)


4 References Were Found:

Technical Report
Technical Report

Safety data sheet. Version 5.2. Undecafluorohexanoic acid. Product number 29226. CAS-No 307-24-4

Author: Sigma-Aldrich (2017) [Fact Sheet] HERO ID: 3980883


Archival Material
Archival Material

ChemSpider: Perfluorohexanoic acid (CAS Number 307-24-4)

Author: RSC (2015) Available online at http://www.chemspider.com/Chemical-Structure.60864.html. (Aug 6, 2017). [Website] HERO ID: 3980884


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Ambient temperature vapor pressure and adsorption capacity for (perfluorooctyl) ethylene, 3-(perfluorobutyl)propanol, perfluorohexanoic acid, ethyl perfluorooctanoate, and perfluoro-3,6-dioxaheptanoic acid

Authors: Schindler, BJ; Buchanan, JH; Mahle, JJ; Peterson, GW; Glover, TG (2013) Journal of Chemical and Engineering Data 58:1806-1812. HERO ID: 3859926

[Less] With increased use of highly fluorinated compounds has come an increased need for knowledge of the fundamental . . . [More] With increased use of highly fluorinated compounds has come an increased need for knowledge of the fundamental properties of these chemicals, such as vapor pressure, to determine how they will behave in the environment and how to remove them. A modified vapor saturation method was used to measure the ambient temperature vapor pressure of 3-(perfluorobutyl)propanol, (perfluorooctyl)ethylene, perfluorohexanoic acid, ethyl perfluorooctanoate, and perfluoro-3,6-dioxaheptanoic acid between (254.15 and 309.15) K. The freezing point for perfluorohexanoic acid was determined to be between (291.15 and 293.15) K The vapor pressures, which ranged from (0.87 to 978) Pa, were used to generate saturated vapor streams of the compound so that adsorption capacities on BPL activated carbon could be determined. Adsorption equilibrium data for three of the chemicals, measured at a feed concentration of 139 mu L.L-1 at high and low relative humidity, are presented and discussed.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

The pKa values of PFOA and other highly fluorinated carboxylic acids

Author: Goss, KU (2008) Environmental Science and Technology 42:456-458. HERO ID: 3980872

[Less] The dissociated and nondissociated species of any organic acid differ largely in their physicochemical . . . [More] The dissociated and nondissociated species of any organic acid differ largely in their physicochemical behavior. The ratio of both species in aqueous systems is determined by the respective pKa value. For perfluorooctanoic acid recent fate-modeling studies have applied a pKa value of 2.8. This value likely is too high by 3 log units. Here, the correct value is estimated to be close to -0.5 based on analogy considerations and molecular modeling. Calculated pKa values for other highly fluorinated carboxylic acids are also presented.