Raman identification of H 2 CO in aqueous solutions

Raman identification of H 2 CO in aqueous solutions

Aqueous formaldehyde solutions of mole fraction from 0.05 to 0.20 were studied by Raman spectroscopy at temperatures up to 180 °C. The previously unreported Raman spectrum of formaldehyde under its non‐hydrated form H 2 CO has been identified, in addition to the already known bands from methanediol...

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Veröffentlicht in:Journal of Raman spectroscopy 2011-05, Vol.42 (5), p.1202-1204
Hauptverfasser: Hanoune, B., Paccou, L., Delcroix, P., Guinet, Y.
Format: Artikel
Sprache:eng
Schlagworte:
Chemical Sciences
or physical chemistry
Theoretical and
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Zusammenfassung:Aqueous formaldehyde solutions of mole fraction from 0.05 to 0.20 were studied by Raman spectroscopy at temperatures up to 180 °C. The previously unreported Raman spectrum of formaldehyde under its non‐hydrated form H 2 CO has been identified, in addition to the already known bands from methanediol CH 2 (OH) 2 and poly(oxymethylene)glycols HO(CH 2 O) n H formed by hydration and subsequent polymerization of the formaldehyde molecules. The experimental spectrum of formaldehyde in solutions agrees perfectly with the theoretical calculations. Copyright © 2010 John Wiley & Sons, Ltd.
ISSN:0377-0486
1097-4555
DOI:10.1002/jrs.2826