Formaldehyde → Melamine formaldehyde

HRID 2107521Notes

Reaction equation

HRID 2107521 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

Next, 13 parts of melamine, 25.1 parts of 37% aqueous formaldehyde solution and 132 parts of water were mixed, followed by dissolution by heating at pH 9.0 to obtain a melamine formaldehyde pre-condensate. This pre-condensate was added to said emulsion, followed by stirring at 70° C. for 2 hours to complete the reaction.

Workup

  1. dissolutionfollowed by dissolution
  2. temperatureby heating at pH 9.0

Sources & evidence

ORD record
ord-15eb6546233d4873b7bfe979fe6824d8
Source dataset
uspto-grants-1990_06
Patent number
US04935172

Reaction notes

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