Formaldehyde → Melamine formaldehyde

HRID 1692538Notes

Reaction equation

HRID 1692538 reaction equation
C=O.[C:3]([O-])([O-])=[O:4].[Na+].[Na+].[N:9]1[C:16]([NH2:17])=[N:15][C:13]([NH2:14])=[N:12][C:10]=1[NH2:11].[Na+].[Cl-]>O>[CH2:3]=[O:4].[N:9]1[C:16]([NH2:17])=[N:15][C:13]([NH2:14])=[N:12][C:10]=1[NH2:11]

Participants

6

Reactant 4

HCID 712FormaldehydeHCID 5234Sodium ChlorideHCID 7955Melamine2×HCID 10340Sodium Carbonate

Product 1

HCID 93374Melamine formaldehyde

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

To a 100 ml conical flask was add 19.5 g formalin (37 wt % aqueous formaldehyde) and 44 g water. The pH of the solution was adjusted to 8.9 using 5 wt % Na2CO3. 10 g melamine and 0.64 g NaCl were added and stirred for 10 minutes at room temperature. The mixture was heated to 62° C. and stirred until the mixture became clear. This mixture is hereinafter referred to as Prepolymer (1) and consists of 23.2 wt % of trimethyloyl melamine in water.

Workup

  1. temperatureThe mixture was heated to 62° C.
  2. stirringstirred until the mixture

Sources & evidence

ORD record
ord-2d0dc184428445aa9c619fe4c69e09c1
Source dataset
uspto-grants-2012_04
Patent number
US08158571B2

Reaction notes

Loading…