Proton and carbon-13 nuclear magnetic resonance spectrometry of formaldehyde in water

Botlan, D. J. Le; Mechin, B.; Martin, G. J.

doi:10.1021/ac00254a041

Cited by 67 publications

(71 citation statements)

References 24 publications

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“…So, above 15 mol% CH 2 O, longer chains are formed in the solution and the number of the C-O-C groups increases rapidly. This is supported by the data of Le Botlan et al 3 reported in Fig. 4.…”

Section: C-o Symmetry Stretchingsupporting

confidence: 87%

Raman analysis of formaldehyde aqueous solutions as a function of concentration

Lebrun

Dhamelincourt

Focşa

et al. 2003

J Raman Spectroscopy

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Raman spectra of aqueous solutions containing up to 40 mol% of formaldehyde were recorded in the 120-4000 cm-1 spectral range. The water vibrational modes are not too heavily modified by the presence of the polymerized species in the aqueous solutions. The intensity of the bands corresponding to the C-O and C-H vibrational modes depends on the water content. Two bands are found for the C-O symmetric and antisymmetric stretching modes. The first is related to the C-O-C groups formed within the oligomer chains as the condensation increases and the second to the C-OH groups located at the end of the oligomer chains. A change in the intensity evolution of the bands corresponding to the stretching modes of the C-O-C groups occurs above 15 mol% formaldehyde concentration, corresponding to the formation of the HO(CH2O)nH oligomers with n3. The intensity of the stretching modes due to the C-OH groups varies linearly with concentration. A linear variation of the band intensity of the CH modes as a function of formaldehyde content is also observed. Copyright © 2003 John Wiley & Sons, Ltd

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Section: C-o Symmetry Stretchingsupporting

confidence: 87%

Raman analysis of formaldehyde aqueous solutions as a function of concentration

Lebrun

Dhamelincourt

Focşa

et al. 2003

J Raman Spectroscopy

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“…w Ž .x methylene glycols c.f. Le Botlan et al 1983 . That technique is suitable for investigating the polymerization Ž .…”

Section: žmentioning

confidence: 99%

Vapor‐liquid and chemical equilibria of formaldehyde‐water mixtures

et al. 1999

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“…Experimental investigations by that technique provided essential progress in our knowledge of chemical-reaction equilibrium in aqueous and methanolic formaldehyde so-Ž lutions Kogan, 1979a;Le Botlan et al, 1983, Hahnenstein et . al., 1994aBalashov et al, 1996 .…”

Section: Modelmentioning

confidence: 99%