Formaldehyde → Urea

HRID 2237350Notes

Reaction equation

HRID 2237350 reaction equation
[NH2:1][C:2]([NH2:4])=[O:3].[CH2:5]=[O:6]>O>[NH2:1][C:2]([NH2:4])=[O:3].[CH2:5]=[O:6].[NH2:1][C:2]([NH2:4])=[O:3]

Participants

5

Reactant 2

HCID 712FormaldehydeHCID 1176Urea

Product 2

HCID 1176UreaHCID 62705Urea formaldehyde foam

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Separately, 57.0 g of urea and 138.1 g of formalin (37%-aqueous solution adjusted to pH 8.0 with 20%-triethanolamine aqueous solution) were mixed under stirring together with 85.4 g of water and allowed to react each other for 60 min. at 70° C. to form a urea resin prepolymer (formaldehyde/urea=1.8 (by mol)) liquid.

Workup

  1. customto react each other for 60 min. at 70° C.

Sources & evidence

ORD record
ord-4de1468ec50e48d89b0dd03f16f1b810
Source dataset
uspto-grants-2010_05
Patent number
US07718572B2

Reaction notes

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