Formaldehyde → Melamine formaldehyde

Participants

Reaction Steps

Separately from the above operations, there was prepared a mixture comprising 11 parts of melamine, 21.2 parts of a 37% formaldehyde solution and 28.2% of water, and the mixture was adjusted to a pH of 9 by adding sodium hydroxide and dissolved by heating to obtain an aqueous solution of melamine-formaldehyde precondensate. This solution was added to said emulsifier solution and the mixed solution was stirred at 70° C. for 2 hours to complete the reaction.

Provenance & Evidence