Reaction #3153

ord-36aa7f1e188145b59bcac8eea2adfe61

Reaction equation

[O-2].[O-2].[Ti+4]
titanium dioxide
[O-2].[O-2].[Ti+4]
titanium dioxide
O=P(O)(O)O
phosphoric acid
O=P12OP3(=O)OP(=O)(O1)OP(=O)(O2)O3
phosphorus pentoxide
→
O=P([O-])([O-])OP(=O)([O-])[O-].[Ti+4]
titanium pyrophosphate
Yield 90.0%

Reactants

[O-2].[O-2].[Ti+4]
titanium dioxide
[O-2].[O-2].[Ti+4]
titanium dioxide
O=P(O)(O)O
phosphoric acid
O=P12OP3(=O)OP(=O)(O1)OP(=O)(O2)O3
phosphorus pentoxide

Reagents

None

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    Otherat a temperature of about 400° C. to about 500° C.

Procedure

thermally reacting titanium dioxide and phosphoric acid at a temperature of about 400° C. to about 500° C. in a reaction mixture having a phosphorus pentoxide to titanium dioxide mole ratio of about 1.20 to about 1.25 to form a fine titanium pyrophosphate powder with greater than 90% of said fine titanium pyrophosphate powder having a particle size less than 1 micron in diameter; and

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05733519uspto-grants-1998_03