Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals
Palm-based dihydroxystearic acid was purified by employing solvent crystallization using ethanol and ethanol/water mixture as solvents. Two different cooling modes, rapid and natural cooling, were employed for the crystallization process. In this study, the cooling effects on morphology, habit, part...
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Taylor & Francis
2010
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| Online Access: | http://umpir.ump.edu.my/id/eprint/8278/ |
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| author | Sumaiya, Zainal Abidin Luqman Chuah, Abdullah Koay, Gregory F. L. Salmiah, A. P., Siwayanan Choonga, Thomas S. Y. |
| author_facet | Sumaiya, Zainal Abidin Luqman Chuah, Abdullah Koay, Gregory F. L. Salmiah, A. P., Siwayanan Choonga, Thomas S. Y. |
| author_sort | Sumaiya, Zainal Abidin |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Palm-based dihydroxystearic acid was purified by employing solvent crystallization using ethanol and ethanol/water mixture as solvents. Two different cooling modes, rapid and natural cooling, were employed for the crystallization process. In this study, the cooling effects on morphology, habit, particle size distribution, and yield of dihydroxystearic acid crystals were investigated. The dihydroxystearic acid crystals appeared to agglomerate into sphere-like and plate-like structures, depending on the cooling modes and the presence of water. By manipulating the solvent and cooling modes, the crystal yield ranged from 0.8% to 42.1%, while the crystal purity ranged from 73.3% to 91.4%. Solvent crystallization using ethanol was best achieved through natural cooling with the dihydroxystearic acid to ethanol ratio of 1.0:1.0, which produced the narrowest particle size distribution curve with the largest average particle size |
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| format | Article |
| id | ump-8278 |
| institution | Universiti Malaysia Pahang |
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| last_indexed | 2025-11-15T01:33:52Z |
| publishDate | 2010 |
| publisher | Taylor & Francis |
| recordtype | eprints |
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| spelling | ump-82782018-04-18T01:50:08Z http://umpir.ump.edu.my/id/eprint/8278/ Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals Sumaiya, Zainal Abidin Luqman Chuah, Abdullah Koay, Gregory F. L. Salmiah, A. P., Siwayanan Choonga, Thomas S. Y. TP Chemical technology Palm-based dihydroxystearic acid was purified by employing solvent crystallization using ethanol and ethanol/water mixture as solvents. Two different cooling modes, rapid and natural cooling, were employed for the crystallization process. In this study, the cooling effects on morphology, habit, particle size distribution, and yield of dihydroxystearic acid crystals were investigated. The dihydroxystearic acid crystals appeared to agglomerate into sphere-like and plate-like structures, depending on the cooling modes and the presence of water. By manipulating the solvent and cooling modes, the crystal yield ranged from 0.8% to 42.1%, while the crystal purity ranged from 73.3% to 91.4%. Solvent crystallization using ethanol was best achieved through natural cooling with the dihydroxystearic acid to ethanol ratio of 1.0:1.0, which produced the narrowest particle size distribution curve with the largest average particle size Taylor & Francis 2010 Article PeerReviewed Sumaiya, Zainal Abidin and Luqman Chuah, Abdullah and Koay, Gregory F. L. and Salmiah, A. and P., Siwayanan and Choonga, Thomas S. Y. (2010) Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals. Particulate Science and Technology, 28 (3). pp. 236-246. ISSN 0272-6351 (Print); 1548-0046 (Online). (Published) http://dx.doi.org/10.1080/02726351.2010.481583 DOI: 10.1080/02726351.2010.481583 |
| spellingShingle | TP Chemical technology Sumaiya, Zainal Abidin Luqman Chuah, Abdullah Koay, Gregory F. L. Salmiah, A. P., Siwayanan Choonga, Thomas S. Y. Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals |
| title | Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals
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| title_full | Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals
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| title_fullStr | Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals
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| title_full_unstemmed | Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals
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| title_short | Effect of Solvent Concentration and Cooling Modes on Morphology, Particle Size Distribution, and Yield of Dihydroxystearic Acid (DHSA) Crystals
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| title_sort | effect of solvent concentration and cooling modes on morphology, particle size distribution, and yield of dihydroxystearic acid (dhsa) crystals |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/8278/ http://umpir.ump.edu.my/id/eprint/8278/ http://umpir.ump.edu.my/id/eprint/8278/ |