Melamine → Melamine cyanurate

HRID 2396564Notes

Reaction equation

HRID 2396564 reaction equation
[N:1]1[C:8]([NH2:9])=[N:7][C:5]([NH2:6])=[N:4][C:2]=1[NH2:3].[NH:10]1[C:17](=[O:18])[NH:16][C:14](=[O:15])[NH:13][C:11]1=[O:12]>>[C:2]1([NH2:3])[N:4]=[C:5]([NH2:6])[N:7]=[C:8]([NH2:9])[N:1]=1.[C:11]1([NH:13][C:14](=[O:15])[NH:16][C:17](=[O:18])[NH:10]1)=[O:12]

Participants

3

Reactant 2

HCID 7955MelamineHCID 7956Cyanuric acid

Product 1

HCID 93198Melamine cyanurateYield 95.7%

Conditions

Temperature
500 °C

Procedure

Placed in a 50 ml stainless steel autoclave which was designed to permit heating up to 500° C. were 6.3 g of industrial melamine (product of Mitsui Toatsu Chemicals Inc., average particle size: 20 μm) and 6.5 g of cyanuric acid ("ICA-P", trade name; product of Shikoku Kasei Corp.; average particle size: 3.1 μm) which had been comminuted beforehand by the jet mill. The contents were gradually heated to 350 ° C. under mixing. The contents were then maintained at 350° C. under mixing for further 1 hour, whereby 12.2 g of melamine cyanurate were obtained. The yield, purity and average particle size were 98.3%, 99.6% and 18.4 μm.

Workup

  1. customhad been comminuted beforehand by the jet mill
  2. temperatureThe contents were gradually heated to 350 ° C.
  3. additionunder mixing
  4. temperatureThe contents were then maintained at 350° C.
  5. additionunder mixing for further 1 hour

Sources & evidence

ORD record
ord-e6fd8c27af2e492eaa3741b29ff356ad
Source dataset
uspto-grants-1996_02
Patent number
US05493023

Reaction notes

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