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Raman identification of H2CO in aqueous solutions

✍ Scribed by B. Hanoune; L. Paccou; P. Delcroix; Y. Guinet

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 159 KB
Volume: 42
Category: Article
ISSN: 0377-0486
DOI: 10.1002/jrs.2826

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✦ Synopsis

Abstract

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.

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