HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Formaldehyde → (Hydroxymethyl)melamine
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Formaldehyde | HCID 712 | — |
| Edukt | Melamine | HCID 7955 | — |
| Produkt | (Hydroxymethyl)melamine | HCID 70300 | — |
Reaktionsschritte
1,269 g of a 35% strength aqueous solution of formaldehyde (pH 3.7) are adjusted to pH 7.3 in a 4-liter three-necked flask by adding 1.8 g of borax. After 252 g of melamine have been added, methylolation is carried out at 75° C. for 2 hours, while stirring with a hook stirrer. The readily stirrable slurry of methylolmelamine obtained is processed further, as described in Example 1, after 1,600 g of methanol have been added.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04223141 |
| Quelldatensatz | uspto-grants-1980_09 |
| ORD ID | ord-f62a314fa7a2432e9c5130ab7be0d24c |
| Quellennotiz | uspto-grants-1980_09 |