Formic Acid → Melamine formaldehyde

Participants

Reaction Steps

126 g of melamine were methylolated in the presence of 270 g of formaldehyde at a pH of 8.5 and at temperatures from 40 to 70° C. The resulting addition compound was adjusted to a pH of 4 using formic acid and was etherified with 900 g of methanol at temperatures of 60° C. for a period of 15 minutes. Following neutralization with sodium hydroxide solution the reaction solution was freed by concentration (distillation) from the unreacted formaldehyde and from the excess methanol.

Provenance & Evidence