Hostname: page-component-848d4c4894-mwx4w Total loading time: 0 Render date: 2024-06-19T05:48:29.542Z Has data issue: false hasContentIssue false
  • English
  • Français

Hydration Behavior of Na-Smectite Crystals Synthesized at High Pressure and High Temperature

Published online by Cambridge University Press:  28 February 2024

Hirohisa Yamada ,
Hiromoto Nakazawa ,
Hideo Hashizume ,
Shuichi Shimomura  and
Takashi Watanabe
Hirohisa Yamada
Affiliation:
National Institute for Research in Inorganic Materials, Namiki 1, Tsukuba, Ibaraki, 305 Japan
Hiromoto Nakazawa
Affiliation:
National Institute for Research in Inorganic Materials, Namiki 1, Tsukuba, Ibaraki, 305 Japan
Hideo Hashizume
Affiliation:
National Institute for Research in Inorganic Materials, Namiki 1, Tsukuba, Ibaraki, 305 Japan
Shuichi Shimomura
Affiliation:
National Institute for Research in Inorganic Materials, Namiki 1, Tsukuba, Ibaraki, 305 Japan
Takashi Watanabe
Affiliation:
Department of Geoscience, Joetsu University of Education, Yamayashiki, Joetsu, Niigata, 943 Japan
Get access Rights & Permissions [Opens in a new window]

Abstract

Hydration behavior of Na-smectite crystals synthesized at a pressure of 5.5 GPa and temperatures of 1400°–1500°C was examined by X-ray powder diffraction at various relative humidities (RH) in the range of 0–100%. The basal spacing of the Na-smectite crystal increased stepwise with increase in RH. The reflections observed were only normal reflections of a single or dual hydration states of smectite. No irrational, intermediate, or asymmetrical reflections were observed. The simple hydration behavior, not known for natural smectite with fine particle sizes and low crystallinity, indicates that the Na-smectite crystals are as perfect as common inorganic crystals with an ordered structure.

Keywords

High-pressure experimentHydrationRelative humiditySmectite crystal
Type
Research Article
Information
Clays and Clay Minerals , Volume 42 , Issue 1 , February 1994 , pp. 77 - 80
Copyright
Copyright © 1994, Clay Minerals Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Brindley, G. W., (1984) Order-disorder in clay mineral structure: in Crystal Structures of Clay Minerals and Their X-ray Identification, Brindley, G. W., and Brown, G., eds., Mineralogical Society, London, 125–195.Google Scholar
Fukunaga, O., Yamaoka, S., Endoh, T., Akaishi, M., and Kanda, H., (1979) Modification of belt-like high pressure apparatus: in High Pressure Science and Technology, Vol. 1, Timmerhaus, K. D., and Barber, M. S., eds., Plenum Publishing Co., New York, 846–852.CrossRefGoogle Scholar
Güven, N., (1988) Smectite: in Hydrous Phyllosilicate (Exclusive of Micas), Reviews in Mineralogy 19, Bailey, S. W., ed., Mineralogical Society of America, Washington, 497–559.CrossRefGoogle Scholar
Howard, J. J., and Roy, D. M., (1985) Development of layer charge and kinetics of experimental smectite alteration: Clays & Clay Minerals 33, 81–88.CrossRefGoogle Scholar
Iwasaki, T., and Watanabe, T., (1988) Distribution of Ca and Na ions in dioctahedral smectites and interstratified dioctahedral mica/smectite: Clays & Clay Minerals 36, 73–82.CrossRefGoogle Scholar
Lagaly, G., and Weiss, A., (1969) Determination of the layer charge in mica-type layer silicate: in Proc. Inter. Clay Conf. Tokyo 1, Heller, L., Fripiat, J. J., Swineford, A., Mackenzie, R. C., Wedepohl, K. H., and Zvyagin, B. B., eds., Israel Universities Press, 61–80.Google Scholar
MacEvan, D. M. C., and Wilson, M. J., (1984) Interlayer and intercalation complexes of clay minerals: in Crystal Structures of Clay Minerals and Their X-ray Identification, Brindley, G. W., and Brown, G., eds., Mineralogical Society, London, 197–248.Google Scholar
Moore, D. M., and Hower, J., (1986) Ordered interstratification of dehydrated and hydrated Na-smectite: Clays & Clay Minerals 34, 379–384.CrossRefGoogle Scholar
Nadeau, P. H., and Bain, D. C., (1986) Composition of some smectites and diagenetic illitic clays and implications for their origin: Clays & Clay Minerals 34, 455–464.CrossRefGoogle Scholar
Nakazawa, H., Yamada, H., and Fujita, T., (1992) Crystal synthesis of smectite applying very high pressure and temperature: Applied Clay Science 6, 395–401.CrossRefGoogle Scholar
Sato, T., Watanabe, T., and Otsuka, R., (1992) Effects of layer charge, charge location, and energy change on expansion properties of dioctahedral smectites: Clays & Clay Minerals 40, 103–113.CrossRefGoogle Scholar
Taibudeen, O., and Goulding, K. W. T., (1983) Charge heterogeneity in smectite: Clays & Clay Minerals 31, 37–42.CrossRefGoogle Scholar
Watanabe, T., and Sato, T., (1988) Expansion characteristics of montmorillonite and saponite under various relative humidity conditions: Clay Science 7, 129–138.Google Scholar
Yamada, H., and Nakazawa, H., (1992) Stability of “high-pressure and high-temperature” smectite: 1992 Annual Meeting Abstract of Mineralogical Society of Japan, p. 46 (in Japanese).Google Scholar
Yamada, H., Nakazawa, H., Yoshioka, K., and Fujita, T., (1991) Smectites in the montmorillonite-beidellite series: Clay Miner. 26, 359–369.CrossRefGoogle Scholar