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).
Object (ShockWave Flash) SWF is a file extension for a Shockwave Flash file format created by Macromedia and now owned by Adobe. SWF stands for Small Web Format. SWF files can contain video and vector based animations and sound and are designed for efficient delivery over the web. SWF files can be viewed in a web browser using the Flash plug in.