Amorphous Calcium Carbonate: Synthesis and Potential Intermediate in Biomineralization

✍ Scribed by M. Faatz; F. Gröhn; G. Wegner

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 348 KB
• Volume: 16
• Category: Article
• ISSN: 0935-9648
• DOI: 10.1002/adma.200306565

✦ Synopsis

Amorphous calcium carbonate is produced as spherical particles (see Figure) via in‐situ generation of CO~2~ by hydrolysis of dialkyl carbonates in aqueous solution of CaCl~2~ at room temperature. This method of synthesis (precipitation) allows detailed studies of the particle formation process. Temperature‐dependent results are rationalized in terms of a phase diagram that assumes a liquid–liquid immiscibility gap with a lower critical separation temperature.