Reacción #1285562

ord-e41c5a15ad2a4fc1ab8427d1c0c16937

Ecuación de reacción

O=P([O-])([O-])OP(=O)([O-])[O-].[Ca+2].[Ca+2]
Calcium pyrophosphate
O=C([O-])[O-].[Ca+2]
calcium carbonate
→
O=P([O-])([O-])[O-].[Ca+2].[Ca+2].[Ca+2].[Ca+2]
tetracalcium phosphate

Reactantes

O=P([O-])([O-])OP(=O)([O-])[O-].[Ca+2].[Ca+2]
Calcium pyrophosphate
O=C([O-])[O-].[Ca+2]
calcium carbonate

Reactivos

Ninguno

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Procedimiento

Calcium pyrophosphate was reacted with calcium carbonate by a conventional method, and calcined to obtain tetracalcium phosphate in powder form. 2 grams of this powder was mixed with 1 g of a setting solution prepared by dissolving 0.1 g of chitosan ("Flonac N" made by Kyowa Yushi Kogyo K. K.) and 3 g of saccharose in 10 g of an aqueous solution of 40% citric acid. A plastic gum-like composition was obtained and this composition set in about 5 minutes to produce a setting material having a high strength.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05281404uspto-grants-1994_01