Formaldehyde → Formaldehyde;phenol

HRID 223587Notes

Reaction equation

HRID 223587 reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:8]=[O:9].[OH-].[Na+]>>[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:8]=[O:9]

Participants

4

Reactant 3

HCID 712FormaldehydeHCID 996PhenolHCID 14798Sodium Hydroxide

Product 1

HCID 172281Formaldehyde;phenol

Procedure

2256 g (24 moles) of phenol, 2409 g (38.4 moles) of 40 wt. % formalin and 48 g (1.2 moles) of sodium hydroxide were charged in a reactor provided with a reflux condenser and the mixture was allowed to react at 85° C. for 2 hours. Then, unreacted formalin was completely removed at that temperature under reduced pressure to obtain a resol having a solid concentration of 75 wt. %. The molecular weight of the resulting resol was measured by gel permeation method to reveal that it had 1-3 nuclei in average.

Workup

  1. customprovided with a reflux condenser
  2. customto react at 85° C. for 2 hours
  3. customThen, unreacted formalin was completely removed at that temperature under reduced pressure
  4. customto obtain a resol

Sources & evidence

ORD record
ord-aaec7106cf3e48e09c38ac2139378c08
Source dataset
uspto-grants-1982_10
Patent number
US04355141

Reaction notes

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