Formaldehyde → (Hydroxymethyl)melamine

HRID 482179

반응식

HRID 482179 반응식
[CH2:1]=[O:2].[N:3]1[C:10]([NH2:11])=[N:9][C:7]([NH2:8])=[N:6][C:4]=1[NH2:5].[OH-].[Na+]>O>[CH2:1]([NH:5][C:4]1[N:6]=[C:7]([NH2:8])[N:9]=[C:10]([NH2:11])[N:3]=1)[OH:2]

참가 물질

5

반응물 3

HCID 712FormaldehydeHCID 7955MelamineHCID 14798Sodium Hydroxide

생성물 1

HCID 70300(Hydroxymethyl)melamine

시약·촉매·용매 1

HCID 962Water용매

반응 조건

온도
70 °C

실험 절차

Formaldehyde (50%, 12.0 g, 0.2 mol) was added to a mixture of melamine (12.6 g, 0.1 mol) and water (40 ml) with stirring. The pH of the mixture was adjusted to 9.0-9.2 by addition of NaOH (0.5N). The mixture was heated to 70° C. and a dyestuff (Direct red 252 mg, 2000 ppm based on melamine) was added to give a colored methylolmelaminersolution. In this procedure, other dyestuffs can be used such as direct dyes, fluorescent dyes, dispersion dyes, and mixtures thereof. See Table 1.

후처리

  1. additiona dyestuff (Direct red 252 mg, 2000 ppm based on melamine) was added
  2. customto give a colored methylolmelaminersolution

출처 및 근거

ORD 기록
ord-8af9f6c403b3492d89625775cedb775e
출처 데이터셋
uspto-grants-1998_08
특허 번호
US05795507

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