Simple, Reproducible Synthesis of Pure Monohydrocalcite with Low Mg Content
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Appendix A
References
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Batch# | Temperature (°C) | Initial Concentrations (mol/kg) | Reacted Solution Concentrations (mol/kg) | Mg/Ca in Solids | Partitioning Coefficient log D | Mineralogy | Crystallite Size | Reference | |||
---|---|---|---|---|---|---|---|---|---|---|---|
Ca | Mg | CO3 | Ca | Mg | (nm) | ||||||
1 | 5 | 0.047 | 0.0095 | 0.029 | 1.6 × 10−2 | 1.0 × 10−2 | - | - | Calcite | - | This study |
2 | 5 | 0.050 | 0.010 | 0.040 | 1.1 × 10−2 | 1.0 × 10−2 | - | - | Calcite | - | This study |
3 | 5 | 0.051 | 0.010 | 0.050 | 2.8 × 10−3 | 8.8 × 10−3 | - | - | Calcite | - | This study |
4 | 5 | 0.050 | 0.010 | 0.060 | 4.1 × 10−4 | 3.7 × 10−3 | - | - | Mg-Calcite | - | This study |
5 | 5 | 0.051 | 0.010 | 0.071 | 1.2 × 10−4 | 9.4 × 10−3 | - | - | MHC, Ara | - | This study |
6 | 5 | 0.050 | 0.010 | 0.080 | 1.1 × 10−4 | 9.5 × 10−3 | 0.0077 | −4.1 | MHC | 37.0 ± 7.4 | This study |
7 | 5 | 0.050 | 0.010 | 0.089 | 8.4 × 10−5 | 1.0 × 10−2 | 0.0083 | −4.2 | MHC | 36.3 ± 4.5 | This study |
8 | 5 | 0.050 | 0.010 | 0.10 | 6.7 × 10−5 | 9.8 × 10−3 | - | - | MHC | 38.2 ± 2.0 | This study |
9 | 5 | 0.050 | 0.010 | 0.11 | 6.5 × 10−5 | 9.5 × 10−3 | 0.0101 | −4.2 | MHC | 37.2 ± 3.1 | This study |
10 | 5 | 0.050 | 0.010 | 0.12 | 6.3 × 10−5 | 9.7 × 10−3 | 0.0102 | −4.2 | MHC | 38.5 ± 3.9 | This study |
N1 | 25 | 0.052 | 0.010 | 0.060 | 8.1 × 10−4 | 7.4 × 10−3 | - | - | Ara, Cal | - | Nishiyama et al. [11] |
N2 | 25 | 0.052 | 0.010 | 0.077 | 1.6 × 10−4 | 9.1 × 10−3 | 0.02 † | −3.5 | MHC | - | Nishiyama et al. [11] |
N3 | 25 | 0.052 | 0.010 | 0.120 | 1.9 × 10−4 | 7.3 × 10−3 | 0.06 † | −2.8 | MHC | - | Nishiyama et al. [11] |
F1 | 25 | 0.050 | 0.035 | 0.090 | 2.4 × 10−4 | 1.9 × 10−2 | 0.085 ± 0.003 | −3.0 | MHC | 28.8 ± 1.2 | Fukushi et al. [15] |
F2 | 25 | 0.050 | 0.015 | 0.100 | 1.3 × 10−4 | 6.7 × 10−3 | 0.136 ± 0.002 | −2.6 | MHC | 21.3 ± 2.1 | Fukushi et al. [15] |
F3 | 25 | 0.160 | 0.040 | 0.200 | 3.5 × 10−4 | 2.7 × 10−2 | 0.281 ± 0.005 | −2.4 | MHC | 11.7 ± 0.9 | Fukushi et al. [15] |
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Kitajima, T.; Fukushi, K.; Yoda, M.; Takeichi, Y.; Takahashi, Y. Simple, Reproducible Synthesis of Pure Monohydrocalcite with Low Mg Content. Minerals 2020, 10, 346. https://doi.org/10.3390/min10040346
Kitajima T, Fukushi K, Yoda M, Takeichi Y, Takahashi Y. Simple, Reproducible Synthesis of Pure Monohydrocalcite with Low Mg Content. Minerals. 2020; 10(4):346. https://doi.org/10.3390/min10040346
Chicago/Turabian StyleKitajima, Takuma, Keisuke Fukushi, Masahiro Yoda, Yasuo Takeichi, and Yoshio Takahashi. 2020. "Simple, Reproducible Synthesis of Pure Monohydrocalcite with Low Mg Content" Minerals 10, no. 4: 346. https://doi.org/10.3390/min10040346