Formaldehyde → Resorcinol-formaldehyde resin
Reaktionsgleichung
[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].[CH2:9]=[O:10].S([O-])([O-])(=O)=O.[Na+].[Na+]>O>[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].[CH2:9]=[O:10]Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Resorcinol, excess formaldehyde, and sodium sulphate were dissolved in water and heated with stirring on a water bath. As soon as the solution became cloudy, the reaction was terminated by the addition of a large volume of cold water. The precipitate was filtered off, washed with water, and dried at room temperature.
Aufarbeitung
- temperatureheated
- customthe reaction was terminated by the addition of a large volume of cold water
- filtrationThe precipitate was filtered off
- washwashed with water
- customdried at room temperature
Quellen und Nachweise
- ORD-Eintrag
- ord-cb22001293ca4c5793f6fe42a7fa05be
- Quelldatensatz
- uspto-grants-1981_03
- Patentnummer
- US04254244
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