Anionic surfactants

Ammonium perfluorononanoate

Ammonium perfluorononanoate (APFN) is an anionic surfactant that in water forms liquid crystalline phases (Lyotropic liquid crystal). It is the ammonium salt of perfluorononanoic acid. The phase diagram of APFN/H2O system is delineated by the presence of a lamellar phase and a nematic phase with awide isotropic solution. The nematic phase is of the type I, and the aggregates have a positive and diamagnetic anisotropy. In the presence of a magnetic field, the aggregates align parallel to the field direction. The change of phase at the lamellar-nematic temperature has been ascribed to order-disorder transitions. (Wikipedia).

Ammonium perfluorononanoate
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From playlist New AP & General Chemistry Video Playlist

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From playlist Organic Chemistry

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From playlist A Level Chemistry "Qualitative Analysis"

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From playlist Research Spotlights

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From playlist CHEMISTRY: Acids, Bases & Alkalis

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From playlist MIT 3.091SC Introduction to Solid State Chemistry, Fall 2010

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From playlist Fire & Pyro

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Related pages

Ammonium | Perfluorononanoic acid