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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| Format: | Article |
| Language: | English |
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Taylor & Francis
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/11273/ http://psasir.upm.edu.my/id/eprint/11273/1/11273.pdf |
| _version_ | 1848841605201526784 |
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| author | Zainal Abidin @ Murad, Sumaiya Abdullah, Luqman Chuah Koay, Gregory Feng Ling Ahmad, Salmiah Choong, Thomas Shean Yaw |
| author_facet | Zainal Abidin @ Murad, Sumaiya Abdullah, Luqman Chuah Koay, Gregory Feng Ling Ahmad, Salmiah Choong, Thomas Shean Yaw |
| author_sort | Zainal Abidin @ Murad, Sumaiya |
| building | UPM 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. |
| first_indexed | 2025-11-15T07:45:53Z |
| format | Article |
| id | upm-11273 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:45:53Z |
| publishDate | 2010 |
| publisher | Taylor & Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-112732019-02-25T07:34:57Z http://psasir.upm.edu.my/id/eprint/11273/ Effect of solvent concentration and cooling modes on morphology, particle size distribution, and yield of dihydroxystearic acid (DHSA) crystals Zainal Abidin @ Murad, Sumaiya Abdullah, Luqman Chuah Koay, Gregory Feng Ling Ahmad, Salmiah Choong, Thomas Shean Yaw 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 2010-05-03 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/11273/1/11273.pdf Zainal Abidin @ Murad, Sumaiya and Abdullah, Luqman Chuah and Koay, Gregory Feng Ling and Ahmad, Salmiah and Choong, Thomas Shean Yaw (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; ESSN: 1548-0046 http://dx.doi.org/10.1080/02726351.2010.481583 10.1080/02726351.2010.481583 |
| spellingShingle | Zainal Abidin @ Murad, Sumaiya Abdullah, Luqman Chuah Koay, Gregory Feng Ling Ahmad, Salmiah Choong, Thomas Shean Yaw 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 |
| title_full | Effect of solvent concentration and cooling modes on morphology, particle size distribution, and yield of dihydroxystearic acid (DHSA) crystals |
| title_fullStr | Effect of solvent concentration and cooling modes on morphology, particle size distribution, and yield of dihydroxystearic acid (DHSA) crystals |
| title_full_unstemmed | Effect of solvent concentration and cooling modes on morphology, particle size distribution, and yield of dihydroxystearic acid (DHSA) crystals |
| title_short | Effect of solvent concentration and cooling modes on morphology, particle size distribution, and yield of dihydroxystearic acid (DHSA) crystals |
| title_sort | effect of solvent concentration and cooling modes on morphology, particle size distribution, and yield of dihydroxystearic acid (dhsa) crystals |
| url | http://psasir.upm.edu.my/id/eprint/11273/ http://psasir.upm.edu.my/id/eprint/11273/ http://psasir.upm.edu.my/id/eprint/11273/ http://psasir.upm.edu.my/id/eprint/11273/1/11273.pdf |