HuagongsheHuagongshe Chemistry Print Report · For research reference only
Formaldehyde → Urea, polymer with formaldehyde and 1,3,5-triazine-2,4,6-triamine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Formaldehyde | HCID 712 | — |
| Reactant | Urea | HCID 1176 | — |
| Reactant | Melamine | HCID 7955 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Solvent | Water | HCID 962 | — |
| Product | Urea, polymer with formaldehyde and 1,3,5-triazine-2,4,6-triamine | HCID 168250 | — |
Reaction Steps
To 56.9 g of a 37% aqueous solution of formaldehyde (formalin) adjusted to the pH of 8.6 by a 5% aqueous solution of sodium hydroxide, 22.6 g of melamine and 20.5 g of urea were added, mixed and dissolved at 50° C. with stirring, and water was added. After one hour, melamine-urea-formaldehyde prepolymer was obtained by cooling.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04670344 |
| Source dataset | uspto-grants-1987_06 |
| ORD ID | ord-a3a59ac9771142dc8c6261ef9a248965 |
| Source note | uspto-grants-1987_06 |