反应详情

93 ml of 10.33M H3PO4 are introduced into a reactor fitted with a condenser and a paddle stirrer. The H3PO4 is then brought to the boil (stirring at 300 rev/minute) using an oil bath on a heating plate, in which the temperature is controlled by means of a contact thermometer. At this point, 0.064 mol of zirconium sulphate is introduced. The pasty product becomes pale yellow (over 1/2 h). The temperature is then lowered to 80° C. and the mixture is left for 48 hours. After cooling, the product obtained is recovered and is centrifuged for 25 minutes. The product is washed a first time with hot water (80° C.) and then with cold water until the washing waters have a pH of 4. The product is dried under vacuum for 40 hours.

1. customfitted with a condenser and a paddle stirrer
2. customyellow (over 1/2 h)
3. customis then lowered to 80° C.
4. temperatureAfter cooling
5. customthe product obtained
6. customis recovered
7. waitis centrifuged for 25 minutes
8. washThe product is washed a first time with hot water (80° C.)
9. customThe product is dried under vacuum for 40 hours