Synthesis of triclinic calcium pyrophosphate crystals.
J Mater Sci Mater Med
; 18(7): 1355-60, 2007 Jul.
Article
de En
| MEDLINE
| ID: mdl-17277979
ABSTRACT
This paper presents a method for preparing crystals of triclinic calcium pyrophosphate (t-CPPD). A calcium pyrophosphate intermediate is first prepared by reaction of potassium pyrophosphate and calcium chloride. Samples of the intermediate are dissolved in hydrochloric acid and urea added. Upon heating to 95-100 degrees C, hydrolysis of the urea causes the pH to rise and t-CPPD crystallises out. Purity of the product was ascertained by chemical and physical analysis. Where large crystals are required an unstirred system is used, while smaller crystals are produced by stirring the reaction mixture.
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Matériaux biocompatibles
/
Diphosphate de calcium
/
Cristallisation
Langue:
En
Journal:
J Mater Sci Mater Med
Sujet du journal:
ENGENHARIA BIOMEDICA
Année:
2007
Type de document:
Article
Pays d'affiliation:
Royaume-Uni