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2004
Sonochemistry
H 3000
Sonochemical Synthesis of Aragonite-Type Calcium Carbonate with Different
— The title compound is synthesized for the first time by irradiating an
49- 012 Morphologies.
aqueous solution containing stoichiometric amounts of CaCl2 and NaHCO3 with
high-power ultrasound. The samples are characterized by XRD, FT-IR, and SEM. The
morphology of the as-synthesized aragonite evolves from rod-shaped to spindle-shaped
upon increasing the acoustic amplitude from 50 to 70% of the full amplitude. A possible
mechanism for the controllable aragonite formation is proposed. This facile route to
obtain uniform aragonite is suitable for large-scale industrial production. — (ZHOU,
G.-T.; YU*, J. C.; WANG, X.-C.; ZHANG, L.-Z.; New J. Chem. 28 (2004) 8,
1027-1031; Dep. Chem., Chin. Univ. Hong Kong, Shatin, Hong Kong, Peop. Rep.
China; Eng.) — W. Pewestorf
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