Kaolinite particle sizes in the <2 μM range using laser scattering

Mackinnon I.D.R., Uwins P.J.R., Yago A. and Page D. (1993) Kaolinite particle sizes in the <2 μM range using laser scattering. Clays and Clay Minerals, 41 5: 613-623. doi:10.1346/CCMN.1993.0410512

Author Mackinnon I.D.R.
Uwins P.J.R.
Yago A.
Page D.
Title Kaolinite particle sizes in the <2 μM range using laser scattering
Journal name Clays and Clay Minerals   Check publisher's open access policy
ISSN 1552-8367
Publication date 1993-01-01
Sub-type Article (original research)
DOI 10.1346/CCMN.1993.0410512
Open Access Status
Volume 41
Issue 5
Start page 613
End page 623
Total pages 11
Publisher Clay Minerals Society
Subject 1111 Nutrition and Dietetics
1901 Art Theory and Criticism
1906 Geochemistry and Petrology
2312 Water Science and Technology
1900 Earth and Planetary Sciences
2300 Environmental Science
Abstract The Clay Minerals Society Source Clay kaolinites, Georgia KGa-1 and KGa-2, have been subjected to particle size determinations by 1) conventional sedimentation methods, 2) electron microscopy and image analysis, and 3) laser scattering using improved algorithms for the interaction of light with small particles. Particle shape, size distribution, and crystallinity vary considerably for each kaolinite. Replicate analyses of separated size fractions showed that in the <2 μm range, the sedimentation/centrifugation method of Tanner and Jackson (1947) is reproducible for different kaolinite types and that the calculated size ranges are in reasonable agreement with the size bins estimated from laser scattering. Particle sizes determined by laser scattering must be calculated using Mie theory when the dominant particle size is less than ~5 μm. Based on this study of two well-known and structurally different kaolinites, laser scattering, with improved data reduction algorithms that include Mie theory, should be considered an internally consistent and rapid technique for clay particle sizing.
Keyword Kaolinite
Laser scattering
Particle size
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
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Citation counts: TR Web of Science Citation Count  Cited 22 times in Thomson Reuters Web of Science Article | Citations
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