Health & Environmental Research Online (HERO)


PFNA (375-95-1)


2,225 References Were Found:

Technical Report
Technical Report

Initial submission: Acute oral toxicity test of ammonium perfluorononanoate in rats with cover letter dated 10/15/92

Author: DuPont Haskell Lab (1992) (EPA/OTS Doc #88-920010541; 8EHQ-1092-12332). Wilmington, DE: E. I. du Pont de Nemours and Company. [TSCA Submission] HERO ID: 4241002


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

NMR-STUDY OF CYCLODEXTRIN INCLUSION OF FLUOROCARBON SURFACTANTS IN SOLUTION

Authors: Guo, W; Fung, BM; Christian, SD (1992) Langmuir 8:446-451. HERO ID: 3858555

[Less] The association of alpha-, beta-, and gamma-cyclodextrins with sodium perfluorobutanoate, sodium perfluoroheptanoate, . . . [More] The association of alpha-, beta-, and gamma-cyclodextrins with sodium perfluorobutanoate, sodium perfluoroheptanoate, sodium perfluorooctanoate, and sodium perfluorononanoate has been studied by F-19 NMR. First, the results suggest that the association of alpha-cyclodextrin with various fluorocarbon surfactants is fairly weak. The cavity of the host cyclodextrin is too small to accommodate the fluorocarbon chain to form an inclusion complex, but there exists an appreciable association between the tail of the surfactant and alpha-cyclodextrin. Secondly, the cavity of beta-cyclodextrin is large enough to accommodate the fluorocarbon chain, but the latter is forced to adopt an extended, possibly all-trans conformation to fit into the cavity. For perfluorosurfactants having a short fluorocarbon chain, a 1:1 complex is formed. When the fluorocarbon chain is longer, 2:1 complexation becomes significant for higher concentrations of beta-cyclodextrin. Thirdly, gamma-cyclodextrin forms a 1:1 complex with fluorocarbon surfactants. The complexation is stronger than that in the alpha-cyclodextrin/surfactant system but weaker than that in the beta-cyclodextrin/surfactant system. The association constants for the 1:1 complexes have been calculated from the dependence of the F-19 NMR chemical shift on the concentration of cyclodextrin.

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

EPR STUDY OF THE STAGE OF INITIATION OF POLYMERIZATION OF TETRAFLUOROETHYLENE BY IRRADIATED PERFLUOROPELARGONIC ACID

Authors: Allayarov, , SR; Gordon, DA; Kim, IP; Baibikov, FA; Barkalov, IM (1991) HERO ID: 3860144

[Less] The paramagnetic centers formed during radiolysis of perfluoropelargonic acid (PA), tetrafluoroethylene . . . [More] The paramagnetic centers formed during radiolysis of perfluoropelargonic acid (PA), tetrafluoroethylene (TFE), and mixtures of them at 77 K and the kinetics of their quenching in heating to 300 K were investigated by EPR. It was shown that active sites stabilized on PA initiate polymerization of TFE. The changes in the EPR spectra caused by polymerization of TFE are not observed. It was hypothesized that radical ions are such active sites.

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

PULSED GRADIENT NMR-STUDY OF ANISOTROPIC SURFACTANT DIFFUSION IN THE CESIUM PERFLUORO OCTANOATE/D2O SYSTEM

Authors: Ukleja, P; Chidichimo, G; Photinos, P (1991) HERO ID: 3860151

[Less] We use pulsed field gradient F-19 NMR to measure the diffusion coefficients of surfactant molecules . . . [More] We use pulsed field gradient F-19 NMR to measure the diffusion coefficients of surfactant molecules in the isotropic and lamellar phases of the caesium perfluoro octanoate (CsPFO)/D2O system. An aligned lamellar sample is created by cooling through the nematic phase in the presence of a 1.4 T magnetic field. The director in the lamellar phase does not respond to ordinary field strengths, thus the aligned sample can be rotated clockwise or counterclockwise to place the director at a magic angle, where measurement of diffusion coefficients becomes possible. From a pair of so-obtained coefficients, we derive the principal values of the diffusion tensor corresponding to the directions parallel and perpendicular to the director (D-parallel-to and D-perpendicular-to). We found D-perpendicular-to to be at least 20 times D-parallel-to, a much larger anisotropy than is seen in electrical conductivity and water diffusion in similar systems. These results are compared to electrical conductivity, water and dye diffusion measurements.

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

ACUTE INHALATION TOXICITY OF AMMONIUM PERFLUORONONANOATE

Authors: Kinney, LA; Chromey, NC; Kennedy G L, , JR (1989) Food and Chemical Toxicology 27:465-468. HERO ID: 5188950

Abstract: BIOSIS COPYRIGHT: BIOL ABS. RRM RAT SURFACTANT DEATH DUST CONCENTRATIONS LIVER SIZE

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

Acute inhalation toxicity of ammonium perfluorononanoate

Authors: Kinney, LA; Chromey, NC; Kennedy, GL (1989) Food and Chemical Toxicology 27:465-468. HERO ID: 3858726

[Less] Ammonium perfluorononanoate (CAS Registry No. 4149-60-4) is a white powder that can become airborne. . . . [More] Ammonium perfluorononanoate (CAS Registry No. 4149-60-4) is a white powder that can become airborne. Its acute inhalation toxicity in male rats was studied. Male rats were exposed for single 4-hr periods to dust concentrations ranging from 67 to 4600 mg/m3. The LC50 was determined to be 820 mg/m3, with the lowest concentration causing death being 590 mg/m3. Ammonium perfluorononanoate was classified as moderately toxic by the acute inhalation route. Exposure to ammonium perfluorononanoate caused a pronounced increase in liver size. The acute toxicity of ammonium perfluorononanoate appears to be similar to that of its 8-carbon homologue, ammonium perfluorooctanoate, but considerably less than that of the 10-carbon homologue, perfluoro-n-decanoic acid.

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

STRUCTURE OF THE LAMELLAR LYO-MESOPHASE IN WATER AMMONIUM PERFLUORONONANOATE MIXTURES - PFG NMR AND H-2-NMR INVESTIGATIONS

Authors: Chidichimo, G; Coppola, L; Lamesa, C; Ranieri, GA; Saupe, A (1988) HERO ID: 3860126


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

LIQUID-CRYSTAL PHASES IN THE CESIUM PERFLUORONONANOATE-WATER SYSTEM

Authors: Vasilevskaya, AS; Generalova, EV; Kitaeva, EL; Sonin, AS (1988) HERO ID: 3860157


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

Increase in mouse liver weight following feeding of ammonium perfluorooctanoate and related fluorochemicals

Author: Kennedy, GL (1987) Toxicology Letters 39:295-300. HERO ID: 3749071

[Less] The weight of the mouse liver following feeding of ammonium perfluorooctanoate, ammonium perfluorononanoate, . . . [More] The weight of the mouse liver following feeding of ammonium perfluorooctanoate, ammonium perfluorononanoate, Telomer B ammonium sulfate, and WG-III was increased in a dose-dependent manner. Dietary levels of 3 ppm or greater ammonium perfluorooctanoate for either 14 or 21 days produced a significant elevation in liver weight both on an absolute and on an organ/body weight ratio basis. Similarly, ammonium perfluorononanoate produced significant increases at the lowest level tested, 3 ppm. Telomer B ammonium sulfate and WG-III also produced liver weight increases but at higher feeding levels. The striking increase in liver weight following relatively short-term exposures in mice makes this a useful screening test for comparing the liver-enlarging capacity of ammonium perfluorooctanoate and related fluorochemicals.

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

MEASUREMENTS OF THE CONDUCTIVITY AND RELAXATION-TIMES FOR THE MICELLAR NEMATIC PHASE OF THE SYSTEM AMMONIUM PERFLUORONONANOATE/H2O

Authors: Photinos, PJ; Saupe, A (1986) HERO ID: 3860209