Ammonia → Tricalcium Phosphate

HRID 1938823Notes

Reaction equation

HRID 1938823 reaction equation
O.O.O.O.[N+]([O-])([O-])=O.[Ca+2:9].[N+]([O-])([O-])=O.[P:14]([OH:18])([O-:17])([O-:16])=[O:15].[NH4+].[NH4+].N>O>[P:14]([O-:18])([O-:17])([O-:16])=[O:15].[Ca+2:9].[P:14]([O-:18])([O-:17])([O-:16])=[O:15].[Ca+2:9].[Ca+2:9]

Participants

5

Reactant 3

HCID 222AmmoniaHCID 24540Diammonium hydrogen phosphateHCID 16211656Calcium nitrate tetrahydrate

Product 1

HCID 24456Tricalcium Phosphate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Conditions

Temperature
80 °C

Procedure

118.1 g of calcium nitrate tetrahydrate were dissolved in 200 ml of water and heated to 80° C., a solution of 33 g of diammonium phosphate in 100 ml of water was added and the mixture was rendered basic with ammonia and was aged for 30 minutes. After cooling, filtration and washing, the precipitate was dried at 120° C. and calcined for 2 hours at 600° C. The powder obtained was converted into a novel molding according to catalyst preparation a).

Workup

  1. temperatureAfter cooling
  2. filtrationfiltration
  3. washwashing
  4. customthe precipitate was dried at 120° C.
  5. waitcalcined for 2 hours at 600° C
  6. customThe powder obtained
  7. customaccording to catalyst preparation a)

Sources & evidence

ORD record
ord-b92f2253767741d0802c2f7974743102
Source dataset
uspto-grants-1997_12
Patent number
US05693825

Reaction notes

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