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1970 1
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Page 1
Inorganic chloramines: a critical review of the toxicological and epidemiological evidence as a basis for occupational exposure limit setting.
Wastensson G, Eriksson K. Wastensson G, et al. Crit Rev Toxicol. 2020 Mar;50(3):219-271. doi: 10.1080/10408444.2020.1744514. Crit Rev Toxicol. 2020. PMID: 32484073 Review.
No data on genotoxic, carcinogenic, reproductive or developmental effects were located. The toxicological data for mono- and dichloramine are insufficient to recommend health-based occupational exposure limits (OELs).As regard trichloramine, the critical effect is judged t …
No data on genotoxic, carcinogenic, reproductive or developmental effects were located. The toxicological data for mono- and dichloramine …
Oxidation of heparan sulphate by hypochlorite: role of N-chloro derivatives and dichloramine-dependent fragmentation.
Rees MD, Pattison DI, Davies MJ. Rees MD, et al. Biochem J. 2005 Oct 1;391(Pt 1):125-34. doi: 10.1042/BJ20050630. Biochem J. 2005. PMID: 15932347 Free PMC article.
Reaction at GlcNH2 residues yields chloramines and, subsequently, dichloramines with markedly slower rates, k2 approximately 3.1x10(5) and 9 M(-1) x s(-1) (at 37 degrees C) respectively. Reaction at GlcNSO3 and GlcNAc residues yields N-chlorosulphonamides and chlora …
Reaction at GlcNH2 residues yields chloramines and, subsequently, dichloramines with markedly slower rates, k2 approximately 3.1x10(5 …
Investigations of the reactions of monochloramine and dichloramine with selected phenols: examination of humic acid models and water contaminants.
Heasley VL, Fisher AM, Herman EE, Jacobsen FE, Miller EW, Ramirez AM, Royer NR, Whisenand JM, Zoetewey DL, Shellhamer DF. Heasley VL, et al. Environ Sci Technol. 2004 Oct 1;38(19):5022-9. doi: 10.1021/es030644h. Environ Sci Technol. 2004. PMID: 15506194
Our paper reports on the reactivities and orientations of two common phenols, phenol (2) and m-cresol (3), and some of their chlorinated intermediates with aqueous monochloramine, NH2Cl, and dichloramine, NHCl2. ...The phenols are an important area of investigation …
Our paper reports on the reactivities and orientations of two common phenols, phenol (2) and m-cresol (3), and some of their chlorina …
Effect of dissolved oxygen on the photodecomposition of monochloramine and dichloramine in aqueous solution by UV irradiation at 253.7 nm.
De Laat J, Boudiaf N, Dossier-Berne F. De Laat J, et al. Water Res. 2010 May;44(10):3261-9. doi: 10.1016/j.watres.2010.03.009. Epub 2010 Mar 15. Water Res. 2010. PMID: 20362321
The photodecomposition rates or the apparent quantum yields of photodecomposition of dichloramine ([NHCl(2)](0) approximately 1.5-2 mM, pH = 3.7 +/- 0.2) in oxygen-free and in oxygen-saturated solutions were quite identical (Phi = 0.82 +/- 0.08 mol E(-1); epsilon(253.7 nm) …
The photodecomposition rates or the apparent quantum yields of photodecomposition of dichloramine ([NHCl(2)](0) approximately 1.5-2 m …
The mechanism of monochloramine disproportionation under acidic conditions.
Fehér PP, Purgel M, Lengyel A, Stirling A, Fábián I. Fehér PP, et al. Dalton Trans. 2019 Nov 28;48(44):16713-16721. doi: 10.1039/c9dt03789f. Epub 2019 Oct 31. Dalton Trans. 2019. PMID: 31670733
By varying the pH, the deprotonation constant of monochloramine has been determined by UV spectroscopy (K(a) = 0.023 0.005 M for I = 1.0 M NaClO(4), and T = 25.0 C). Dichloramine formation via monochloramine disproportion was found to follow second-order kine …
By varying the pH, the deprotonation constant of monochloramine has been determined by UV spectroscopy (K(a) = 0.023 0.005 M for I = …
Triclosan reactivity in chloraminated waters.
Greyshock AE, Vikesland PJ. Greyshock AE, et al. Environ Sci Technol. 2006 Apr 15;40(8):2615-22. doi: 10.1021/es051952d. Environ Sci Technol. 2006. PMID: 16683600
Experimental and modeling results show that monochloramine directly reacts with the phenolate form of triclosan; however, the reaction is relatively slow as evinced by the second-order rate constant k(ArO)-NH2Cl = 0.025 M(-1) s(-1). Kinetic modeling indicates that for pH v …
Experimental and modeling results show that monochloramine directly reacts with the phenolate form of triclosan; however, the reaction is re …
Azasulfur(iv) derivatives of sulfite and sulfinate esters by formal S-S bond insertion of dichloramines.
Wu P, Demaerel J, Statham BJ, Bolm C. Wu P, et al. Chem Sci. 2024 Mar 5;15(14):5333-5339. doi: 10.1039/d4sc00500g. eCollection 2024 Apr 3. Chem Sci. 2024. PMID: 38577380 Free PMC article.
Azasulfur(vi) compounds such as sulfoximines and sulfonimidamides are attractive due to the unique properties of the S[double bond, length as m-dash]N bond. While the synthesis of these carbon-attached sulfonimidoyl derivatives is well-established, the situation is differe …
Azasulfur(vi) compounds such as sulfoximines and sulfonimidamides are attractive due to the unique properties of the S[double bond, length a …
Exposure to chloramines in a green salad processing plant.
Hery M, Gerber JM, Hecht G, Subra I, Possoz C, Aubert S, Dieudonne M, Andre JC. Hery M, et al. Ann Occup Hyg. 1998 Oct;42(7):437-51. doi: 10.1016/s0003-4878(98)00041-6. Ann Occup Hyg. 1998. PMID: 9793475
In the washing room (where salads are processed), the total chloramine concentration ranged from 0.4 to 16 mg.m-3, depending on the day and the location of the area sampling points. The exposure of workers determined by personal sampling ranged from 0.2 to 5 mg.m-3. …
In the washing room (where salads are processed), the total chloramine concentration ranged from 0.4 to 16 mg.m-3, depending on the d …
Stability characteristics of aqueous chloramine-T solutions.
Rao VR, Venkappayya D, Aravamudan G. Rao VR, et al. Talanta. 1970 Aug;17(8):770-2. doi: 10.1016/0039-9140(70)80166-7. Talanta. 1970. PMID: 18960798
Aqueous chloramine-T solutions in strongly alkaline medium are quite stable even up to 60 degrees . In 0.2-2 M sulphuric or perchloric acid at 25-30 degrees , there is no loss in titre, but in hydrochloric acid solutions > 0-5M, there is a loss in titre which increases …
Aqueous chloramine-T solutions in strongly alkaline medium are quite stable even up to 60 degrees . In 0.2-2 M sulphuric or perchlori …
Inactivation of Mycobacterium avium with monochloramine.
Luh J, Tong N, Raskin L, Mariñas BJ. Luh J, et al. Environ Sci Technol. 2008 Nov 1;42(21):8051-6. doi: 10.1021/es801133q. Environ Sci Technol. 2008. PMID: 19031901
Experiments performed at pH approximately 3.5 showed that dichloramine was a weaker disinfectant than monochloramine, and that its contribution to the overall inactivation of M. avium with combined chlorine was negligible at pH 6-10. A kinetic model incorporating di …
Experiments performed at pH approximately 3.5 showed that dichloramine was a weaker disinfectant than monochloramine, and that its co …
18 results