Formaldehyde → Melamine formaldehyde

HRID 974153Notes

Reaction equation

HRID 974153 reaction equation
[N:1]1[C:8]([NH2:9])=[N:7][C:5]([NH2:6])=[N:4][C:2]=1[NH2:3].[CH2:10]=[O:11]>O>[CH2:10]=[O:11].[N:1]1[C:8]([NH2:9])=[N:7][C:5]([NH2:6])=[N:4][C:2]=1[NH2:3]

Participants

4

Reactant 2

HCID 712FormaldehydeHCID 7955Melamine

Product 1

HCID 93374Melamine formaldehyde

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Then, 13 parts of melamine, 25.1 parts of a 37% formaldehyde solution and 132 parts of water were mixed, adjusted to pH 9.0 and dissolved by heating to obtain a melamine-formaldehyde precondensate, and the latter was added to the previously prepared emulsifier solution and stirred at 70° C. for 2 hours to complete the reaction.

Workup

  1. dissolutiondissolved
  2. temperatureby heating

Sources & evidence

ORD record
ord-1bd96f60e5814b90b85ac36075a65956
Source dataset
uspto-grants-1991_11
Patent number
US05068067

Reaction notes

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