Decontamination reactions of chemical warfare agent simulants with alcohols in the basic ionic liquid tetramethylammonium hydroxide/1,2-dimethyl-3-propylimidazolium bis(trifluoromethylsulfonyl)amide / John S. Wilkes in Industrial & engineering chemistry research, Vol. 47 n°11 (Juin 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 n°11 (Juin 2008) . - p. 3820–3826 Titre : Decontamination reactions of chemical warfare agent simulants with alcohols in the basic ionic liquid tetramethylammonium hydroxide/1,2-dimethyl-3-propylimidazolium bis(trifluoromethylsulfonyl)amide Type de document : texte imprimé Auteurs : John S. Wilkes, Auteur ; Patrick J. Castle, Auteur ; Joseph A. Levisky, Auteur ; Cynthia A. Corley, Auteur Année de publication : 2008 Article en page(s) : p. 3820–3826 Note générale : Bibliogr. p. 3826 Langues : Anglais (eng) Mots-clés : Chemical warfare simulants  Ionic liquid  Tetramethylammonium hydroxide pentahydrate Résumé : Increased acts of international terrorism called for the development of rapid and reliable chemical agent decontamination reactions to minimize human exposure and material loss. Even though many chemical reaction processes have been reported, most remain unattractive for various reasons. In order to eliminate many of the adversities, these processes were studied in an ionic liquid solvent. In this report, we describe the reaction between chemical warfare simulants with alcohols in the ionic liquid 1,2-dimethyl-3-propylimmidazolium bis(trifluoromethylsulfonyl)amide made basic with tetramethylammonium hydroxide pentahydrate. The chemical agent simulants used in this study were diisopropylfluorophosphate, bis(2-ethylhexyl) phosphite, and chloroethylphenyl sulfide, which simulate agents GD, VX, and HD, respectively. The reactions were rapid, and products were identified by LC/MS-TOF and GC/MS. All of the reaction products of the VX and HD simulants remained in the ionic liquid, whereas the products from GD simulant partitioned between the ionic liquid and water extract. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800237z [article] Decontamination reactions of chemical warfare agent simulants with alcohols in the basic ionic liquid tetramethylammonium hydroxide/1,2-dimethyl-3-propylimidazolium bis(trifluoromethylsulfonyl)amide [texte imprimé] / John S. Wilkes, Auteur ; Patrick J. Castle, Auteur ; Joseph A. Levisky, Auteur ; Cynthia A. Corley, Auteur . - 2008 . - p. 3820–3826. Bibliogr. p. 3826 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°11 (Juin 2008) . - p. 3820–3826 Mots-clés : Chemical warfare simulants  Ionic liquid  Tetramethylammonium hydroxide pentahydrate Résumé : Increased acts of international terrorism called for the development of rapid and reliable chemical agent decontamination reactions to minimize human exposure and material loss. Even though many chemical reaction processes have been reported, most remain unattractive for various reasons. In order to eliminate many of the adversities, these processes were studied in an ionic liquid solvent. In this report, we describe the reaction between chemical warfare simulants with alcohols in the ionic liquid 1,2-dimethyl-3-propylimmidazolium bis(trifluoromethylsulfonyl)amide made basic with tetramethylammonium hydroxide pentahydrate. The chemical agent simulants used in this study were diisopropylfluorophosphate, bis(2-ethylhexyl) phosphite, and chloroethylphenyl sulfide, which simulate agents GD, VX, and HD, respectively. The reactions were rapid, and products were identified by LC/MS-TOF and GC/MS. All of the reaction products of the VX and HD simulants remained in the ionic liquid, whereas the products from GD simulant partitioned between the ionic liquid and water extract. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800237z

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Reactions of chemical warfare agent simulants in the common ion binary ionic liquid 1,2-dimethyl-3-propylimidazolium/copper(II) bis(trifluoromethylsulfonyl)amide / John S. Wilkes in Industrial & engineering chemistry research, Vol. 48 N° 13 (Juillet 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 13 (Juillet 2009) . - pp. 6203–6211 Titre : Reactions of chemical warfare agent simulants in the common ion binary ionic liquid 1,2-dimethyl-3-propylimidazolium/copper(II) bis(trifluoromethylsulfonyl)amide Type de document : texte imprimé Auteurs : John S. Wilkes, Auteur ; Patrick J. Castle, Auteur ; Joseph A. Levisky, Auteur Année de publication : 2009 Article en page(s) : pp. 6203–6211 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Ionic liquids Organic solvents Hydrogen peroxide Diisopropylfluorophosphate Bis(2-ethylhexyl) phosphite 2-chloroethylphenyl sulfide Résumé : Ionic liquids have the potential for being ideal alternatives for organic solvents in chemical warfare agent reactions and demilitarization processes. They are considered to be an excellent substitute, because of their extraordinarily wide liquid range, low melting points, chemical and thermal stability, high conductivity, and nonvolatility. In addition, many have excellent hydrophobic properties and immiscibility with water and offer the opportunity to isolate the chemical agents and reaction products from the environment. In this report, we describe a two-step process in which chemical warfare simulants are reacted with hydrogen peroxide (H2O2) followed by basic methanol in a common ion binary ionic liquid that consists of 1,2-dimethyl-3-propylimidazolium bis(trifluoromethylsulfonyl)amide and copper(II) bis(trifluoromethylsulfonyl)amide. The chemical agent simulants used in this study are diisopropylfluorophosphate, bis(2-ethylhexyl) phosphite, and 2-chloroethylphenyl sulfide, which simulate agents GB, VX, and HD, respectively. Initially, H2O2 is added to the mixture of simulants and ionic liquid to remove 2-chloroethylphenyl sulfide, followed by the addition of methanolic tetramethylammonium hydroxide hydrate (TMAOH·5H2O) (basic methanol) to eliminate diisopropylfluorophosphate and bis(2-ethylhexyl) phosphite. The reactions were monitored by liquid chromatography/mass spectroscopy time-of-flight (LC/MS-TOF), coupled with ultraviolet (UV) diode array detection. Gas chromatography/mass spectroscopy (GC/MS) was used to aid in product identification. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801650n [article] Reactions of chemical warfare agent simulants in the common ion binary ionic liquid 1,2-dimethyl-3-propylimidazolium/copper(II) bis(trifluoromethylsulfonyl)amide [texte imprimé] / John S. Wilkes, Auteur ; Patrick J. Castle, Auteur ; Joseph A. Levisky, Auteur . - 2009 . - pp. 6203–6211. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 13 (Juillet 2009) . - pp. 6203–6211 Mots-clés : Ionic liquids Organic solvents Hydrogen peroxide Diisopropylfluorophosphate Bis(2-ethylhexyl) phosphite 2-chloroethylphenyl sulfide Résumé : Ionic liquids have the potential for being ideal alternatives for organic solvents in chemical warfare agent reactions and demilitarization processes. They are considered to be an excellent substitute, because of their extraordinarily wide liquid range, low melting points, chemical and thermal stability, high conductivity, and nonvolatility. In addition, many have excellent hydrophobic properties and immiscibility with water and offer the opportunity to isolate the chemical agents and reaction products from the environment. In this report, we describe a two-step process in which chemical warfare simulants are reacted with hydrogen peroxide (H2O2) followed by basic methanol in a common ion binary ionic liquid that consists of 1,2-dimethyl-3-propylimidazolium bis(trifluoromethylsulfonyl)amide and copper(II) bis(trifluoromethylsulfonyl)amide. The chemical agent simulants used in this study are diisopropylfluorophosphate, bis(2-ethylhexyl) phosphite, and 2-chloroethylphenyl sulfide, which simulate agents GB, VX, and HD, respectively. Initially, H2O2 is added to the mixture of simulants and ionic liquid to remove 2-chloroethylphenyl sulfide, followed by the addition of methanolic tetramethylammonium hydroxide hydrate (TMAOH·5H2O) (basic methanol) to eliminate diisopropylfluorophosphate and bis(2-ethylhexyl) phosphite. The reactions were monitored by liquid chromatography/mass spectroscopy time-of-flight (LC/MS-TOF), coupled with ultraviolet (UV) diode array detection. Gas chromatography/mass spectroscopy (GC/MS) was used to aid in product identification. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801650n

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