Synthesis [edit]. Quaternary ammonium compounds are prepared by the alkylation of tertiary amines with a halocarbon. In older literature this is often called a Menshutkin reaction, however modern chemists usually refer to it simply as quaternization.uaternary ammonium compounds have also been shown to have antimicrobial activity. Certain quaternary ammonium compounds, especially those containing long alkyl chains, are used as antimicrobials and disinfectants.
Answer: XPF files are Uncommon Files primarily associated with XaoS Position File (Jan Hubicka Thomas Marsh Zoltan Kovacs and Others).
The .wrf file extension is most commonly associated with the WebEx recording software. The WRF files contain audio and video recordings created by this software. WebEx is commonly used to create computer tutorials and demonstrations for online training purposes.he .wrf file extension is most commonly associated with the WebEx recording software. The WRF files contain audio and video recordings created by this software. WebEx is commonly used to create computer tutorials and demonstrations for online training purposes.