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1 H NMR for quantifying sulfide trapping efficiency by using 1,3,5‐tris(2‐hydroxyethyl)‐1,3,5‐triazinane
Author(s) -
Canuto André V. S.,
Echevarria Aurea
Publication year - 2014
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.4072
Subject(s) - chemistry , hydrogen sulfide , sulfide , tris , sodium sulfide , nuclear magnetic resonance spectroscopy , trapping , sulfur , inorganic chemistry , organic chemistry , ecology , biochemistry , biology
Hydrogen sulfide (H 2 S) is an extremely toxic colourless gas; it is corrosive and denser than air. It usually happens in oil and natural gas fields, refineries, coal mines, and in some industrial effluent treatment systems. This work presents an alternative method of monitoring and quantifying H 2 S trapping efficiency by using 1,3,5‐tris(2‐hydroxyethyl)‐1,3,5‐triazinane as a sequestering agent, and sodium sulfide as a source of sulfide ion, through 1 H NMR spectroscopy. The results proved that the reaction occurs very quickly at 20 °C at pH 7 and 10. 3,5‐di(2‐hydroxyethyl)‐1,3,5‐thiodiazinane and 5‐(2‐hydroxyethyl)‐1,3,5‐dithiozinane were observed and quantified; it was evidenced that 1 H NMR spectroscopy can be applied as a fast and effective method to quantify H 2 S trapping efficiency. Copyright © 2014 John Wiley & Sons, Ltd.