phosphonium


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phos·pho·ni·um

(fos-fō'nē-ŭm),
The radical, (PR4)+.
References in periodicals archive ?
Yutaka W, Eiji E, Masanao J, Ozaki S (1993) Phosphonium salt methodology for the synthesis of phosphoric monoesters and diesters and its application to selective phosphorylation.
2] The transfer agent or catalyst is often an ammonium salt or quaternary phosphonium, usually called "quat" and symbolized by [Q.
Excluding vegetable tannins, the most used metal free systems are based on glutaraldehyde or phosphonium salts (THPS)," explains Claus Reineking, Head of PM Wet End Chemicals of Clariant's BU Leather Services.
One popular liquid cleaner contains an active ingredient called THPS Tetrakis (hydroxymethyl) phosphonium sulfate and can be formulated with an ammonium ion or organic phosphonate to speed up the dissolution of iron compounds.
Moreover, the water-soluble ligands we have developed are phosphonium salts, which are easily deprotonated, that offer greater stability when shipping or in open atmosphere.
Heterogeneous Reactions Involving Anion Transfer by Quaternary Ammonium and Phosphonium Salts," J.
The phosphonium ion efflux system of Escherichia coli: a relationship to the ethidium efflux system and energetic studies.
Stephan of the University of Windsor in Ontario and his colleagues describe a metalfree compound, called phosphonium borate, that does both.
According to Chemical and Engineering News magazine, chemistry researchers Professor Douglas Stephan and Gregory Welch have synthesized a phosphonium borate compound that is able to produce hydrogen molecules when heated.
But an additional factor is that crosslinks are generated in the presence of phosphonium accelerator and metal oxides without the presence of BpAF (refs.
The full registration, one of the industry's most stringent and rigorous, is the only one for a biocide based on Tetrakishydroxymethyl Phosphonium Sulfate, giving oilfield service companies in Canada access to the industry's leading, biodegradable technology for controlling bacteria in oil and gas reservoirs.