The sulfate radicals (SO4•−)-based advanced oxidation process is an efficient way to degrade stubborn pollutants. However, the degradation products of 2,4-dinitrotoluene and effects different natural water matrices on by persulfate/Fe2+ are largely unknown. In this study, kinetics were investigated in matrices. can be divided into rapid-slow reaction stages, which was suitably described pseudo-...

Provocación bronquial específica en el trabajo y asma ocupacional por sales de persulfato To the Editor: Persulfate salts are the agents most commonly associated with occupational asthma (OA) among hairdressers. 1 Although the first cases were described decades ago, the prevalence, mechanism, value of diagnostic tests and the progress of these patients remain poorly defined. We present the case...

Methods for quantifying total dissolved phosphorus (TDP) were reevaluated. High-temperature ashing/hydrolysis (Ash/Hydrol.) and Acid Persulfate methods were examined for their ability to quantitatively convert a range of organic-P compounds to orthophosphate. The Ash/Hydrol. method recovered on average 99% of organic-P compounds tested, including phosphonates (compounds with C-P bonds). Contrar...

In this study, the emulsion homopolymerization system containing vinyl acetate, potassium persulfate, a new cationic polymeric surfactant and water was studied by the applying semi-continuous emulsion polymerization process. The effects of new polymeric emulsifier on the physicochemical properties of obtained vinyl acetate latexes were investigated depending on vinyl acetate percentage in the p...

* Corresponding Author Email: [email protected] Objective(s): The main aim of current research was to develop a novel magnetically responsive hydrogel by radical polymerization of carboxymethyl cellulose (CMC) on acryl amide (Am) using N,N'-methylene bis acrylamide (MBA) as a crosslinking agent, potassium persulfate (KPS) as a free radical initiator, and magnetic montmorillonite ( mMT)...

The metal-free synthesis of 2-substituted and 2,3-disubstituted morpholines through a one-pot strategy is described. A simple and inexpensive ammonium persulfate salt enables the reaction of aziridines with halogenated alcohols to proceed via an SN2-type ring opening followed by cyclization of the resulting haloalkoxy amine.

Persulfate-based in situ chemical oxidation (ISCO) has been increasingly used for the remediation of contaminated groundwater and soil. In recent years, there have numerous studies literature on all aspects activation persulfate contaminant removal at laboratory scale, including ways mechanisms activation, pathways degradation, factors associated with performance, methods characterizing process...