Реакция #1474832

Уравнение реакции

pyrophosphoric acid

Tetrasodium pyrophosphate

Melamine

melamine

tetrasodium pyrophosphate

→

Melamine Pvrophosphate

Растворители

water

water

Условия реакции

Обработка

1. 1
   workup.ADDITIONcontaining 1.5l of AMBERLITE 120H ion exchange resin
2. 2
   Фильтрацияthe product melamine pyrophosphate IX was then recovered by filtration
3. 3
   Промывкаwashed with deionized water (2 l)
4. 4
   СушкаThe product melamine pyrophosphate IX was dried in an oven at 100°C to constant weight
5. 5
   ДругоеYields from several preparations

Методика

Tetrasodium pyrophosphate (110 g) was dissolved in 4.1 l of deionized water at ambient temperature. Melamine (104 g) was separately slurried in 4.1 l of deionized water at ambient temperature. The clear tetrasodium pyrophosphate solution was passed at a rate of 150 ml/min. through a 5 cm inner diameter ion exchange column containing 1.5l of AMBERLITE 120H ion exchange resin. The pyrophosphoric acid solution flowing from the exchange column was passed directly into the melamine slurry container. After agitating for 15 minutes, the product melamine pyrophosphate IX was then recovered by filtration and washed with deionized water (2 l). The product melamine pyrophosphate IX was dried in an oven at 100°C to constant weight. Yields from several preparations were 94% +/− 1%.

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