Phenol → Formaldehyde

HRID 1030256Notes

Reaction equation

HRID 1030256 reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1>O>[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:1]=[O:7]

Participants

4

Reactant 1

HCID 996Phenol

Product 2

HCID 712FormaldehydeHCID 996Phenol

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

This example demonstrates that phenol, when combined with an aldehyde, gels a polyacrylamide relatively quickly at 210° F. A solution of Phillips HE-B® polyacrylamide (5000 ppm), phenol (1000 ppm), and formaldehyde (1900 ppm) was prepared in synthetic sea water (pH unadjusted). When aged overnight (15 hours) at 210° F., a tough, deformable, elastic gel was formed. This gel showed no syneresis or other evidence of degradation after 26 weeks of storage of 210° F.

Workup

  1. customrelatively quickly at 210° F
  2. custom(15 hours) at 210° F., a tough, deformable, elastic gel was formed
  3. customafter 26 weeks
  4. customof storage of 210° F.

Sources & evidence

ORD record
ord-e77f8eeb54314cd3bda8785c67ea1aaa
Source dataset
uspto-grants-1992_04
Patent number
US05104912

Reaction notes

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