Nucleation and crystal growth of calcium oxalate trihydrate
The crystallization of calcium oxalate has been studied in stirred and unstirred aqueous solutions containing near stoichiometric concentrations of calcium and oxalate ions in the concentration range 9.6 × 10-5 M to 9.8 × 10-4 M. For stirred conditions in the temperature range 10–37° C calcium oxala...
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| Published in | Journal of crystal growth Vol. 30; no. 2; pp. 158 - 168 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.09.1975
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| Online Access | Get full text |
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| Summary: | The crystallization of calcium oxalate has been studied in stirred and unstirred aqueous solutions containing near stoichiometric concentrations of calcium and oxalate ions in the concentration range 9.6 × 10-5 M to 9.8 × 10-4 M. For stirred conditions in the temperature range 10–37° C calcium oxalate trihydrate was the initial precipitating phase and its growth kinetics were described using an equation relating the rate of crystallization to the square of the supersaturation in solution. The calculated rate constants for crystal growth were independentof stirring rate and temperature. Both calcium oxalate monohydrate and trihydrate crystallized from unstirred solutions. Morphologies of the two crystalline hydrates are compared and related to their growth kinetics. |
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| ISSN: | 0022-0248 1873-5002 |
| DOI: | 10.1016/0022-0248(75)90085-8 |