Archivio Istituzionale della RicercaAn analytical procedure for free phenol analysis in phenol-formaldehyde polycondensates avoiding free phenol separation is proposed. Sample aqueous solution is diluted with acetone and dehydrated by contact with zeolite molecular sieves; finally IR determination is performed at 14.4 microns. The method was applied to industrial resol solutions and checked by the standard addition method.
Free phenol determination by IR analysis on aqueous solutions of phenol-formaldehyde polycondensates / Panetti, M; Cangelosi, A; Ferrero, Franco. - In: ANNALI DI CHIMICA. - ISSN 0003-4592. - STAMPA. - 71:(1981), pp. 743-748.
Free phenol determination by IR analysis on aqueous solutions of phenol-formaldehyde polycondensates
FERRERO, Franco
1981
Abstract
An analytical procedure for free phenol analysis in phenol-formaldehyde polycondensates avoiding free phenol separation is proposed. Sample aqueous solution is diluted with acetone and dehydrated by contact with zeolite molecular sieves; finally IR determination is performed at 14.4 microns. The method was applied to industrial resol solutions and checked by the standard addition method.
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Utilizza questo identificativo per citare o creare un link a questo documento:
https://hdl.handle.net/11583/1651665