Melamine → 1,3,5-Triazine-2,4,6-triamine monophosphate

HRID 1786714Notes

Reaction equation

HRID 1786714 reaction equation
[O:1]=[P:2]12[O:13]P3(OP(OP(O3)([O:9]1)=O)(=O)[O:3]2)=O.[N:15]1[C:22]([NH2:23])=[N:21][C:19]([NH2:20])=[N:18][C:16]=1[NH2:17]>>[P:2]([OH:13])([OH:9])([OH:3])=[O:1].[N:15]1[C:22]([NH2:23])=[N:21][C:19]([NH2:20])=[N:18][C:16]=1[NH2:17]

Participants

3

Reactant 2

HCID 7955MelamineHCID 14812Phosphorus oxide (P4O10)

Product 1

HCID 926121,3,5-Triazine-2,4,6-triamine monophosphate

Procedure

Under atmosphere, charged in a twin-screw extruder were 70.97 g (0.5 moles) of diphosphorus pentoxide and 126.06 g (1.0 moles) of melamine (commercial name: Chang Chun Melamine), and a bar like product was formed at the extrusion temperature of 340° C. After being cooled, the bar like product is pulverized, thereby a powdery melamine phosphate product is obtained. The thermal degradation of the powdery product at 260° C. was measured with differential thermo/thermogravimetric analyzer. The loss of weight was 0.25% by weight. The results of phosphorus content and dispersibility of the powdery melamine phosphate product were shown as in Table 1.

Workup

  1. additionUnder atmosphere, charged in a twin-screw extruder
  2. customwas formed at the extrusion temperature of 340° C
  3. temperatureAfter being cooled

Sources & evidence

ORD record
ord-8c8d4afcbe4e4f69bad780bdcf58c27e
Source dataset
uspto-grants-2009_03
Patent number
US07507819B2

Reaction notes

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