Formaldehyde → Melamine formaldehyde

Participants

Reaction Steps

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

Provenance & Evidence