Formaldehyde → HCID 86735192, compound
Reaction equation
[NH2:1][C:2]([NH2:4])=[O:3].C=O.[C:7]([OH:11])(=[O:10])[CH:8]=[O:9]>>[NH2:1][C:2]([NH2:4])=[O:3].[CH2:8]=[O:9].[C:7]([OH:11])(=[O:10])[CH:8]=[O:9]Participants
4
Procedure
in a first stage condensing urea and formaldehyde in an aqueous solution in the presence of glyoxylic acid at a pH between two and five at a temperature of 20° C to 100° C and with a molar ratio of urea/formaldehyde/glyoxylic acid of substantially 1 : 2 to 10 : 0.03 to 0.6 to produce a precondensate; and
Sources & evidence
- ORD record
- ord-47a25a4bed2f434880855e7ab4f96441
- Source dataset
- uspto-grants-1977_11
- Patent number
- US04058498
Reaction notes
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