Health & Environmental Research Online (HERO)


PFBS (375-73-5)


563 References Were Found:

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

Gas chromatographic determination of amides after perfluoroacylation: preparation and properties of the trifluoroacetyl and pentafluorobenzoyl derivatives

Authors: Ehrsson, H; Mellstrom, B (1972) HERO ID: 3856575

[Less] IPA COPYRIGHT: ASHP The acylation of amides with trifluoroacetic (TFA) anhydride and pentafluorobenzoyl . . . [More] IPA COPYRIGHT: ASHP The acylation of amides with trifluoroacetic (TFA) anhydride and pentafluorobenzoyl (PFB) chloride was studied. It was found that the TFA derivatives were formed rapidly at 20DGC., whereas the reaction with PFB chloride was considerably slower and required a trimethylamine catalyst. The PFB derivatives were found to be more stable than the TFA compounds, the latter decomposing upon dilution of the reaction mixtures. The gas chromatographic quantitative determination of phenacetin after trifluoroacetylation using a flame ionization detector is described.

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 environment and disease: Association or causation?

Author: Hill, AB (1965) Proceedings of the Royal Society of Medicine 58:295-300. HERO ID: 71664


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 Thermal Decomposition of Tetrafluoroethylene

Authors: Atkinson, B; Atkinson, VA (1957) HERO ID: 1919745

[Less] The thermal decomposition of various fluorocarbons was investigated. Samples of tetrafluoroethylene . . . [More] The thermal decomposition of various fluorocarbons was investigated. Samples of tetrafluoroethylene (116143) (TCE), perfluoroethane (76164) (PFE), perfluoropropene (116154) (PFP), perfluorocyclobutane (115253) (PFCB), and perfluoroisobutene (382218) (PFIB) were pyrolyzed in nickel and stainless containers at low (300 to 550 degrees), medium (550 to 650 degrees), and high (650 to 750 degrees) temperatures. Resulting products were identified by infrared analysis. At tempertures above 550 degrees, a TCE equilibrium mixture decomposed to produce PFP, which in turn decomposed to yield PFIB. The reaction was first order for PFP, and 1.5 for PFIB. PFB decomposed at temperatures above 700 degrees to form PFE by first order kinetics. The authors suggest that reactions producing PFP involve an intermediate difluoromethylene radical, while those producing PFIB involve an intermediate trifluoromethyl radical.