Clays and Clay Minerals

, Volume 41, Issue 6, pp 655–661 | Cite as

Synthesis of Smectite from Volcanic Glass at Low Temperature

  • Katsutoshi Tomita
  • Hisanori Yamane
  • Motoharu Kawano


Smectite and zeolites were formed from a volcanic glass as the products of reaction with NaOH solution at 90°C and 100°C under atmospheric pressure. Formation conditions of smectite and various zeolites were determined by the ratio of the amounts of volcanic glass (g) to NaOH (g) in the solution. Smectite was formed under the condition that the values of weight of volcanic glass (g)/(NaOH(g)/40) are between 0.5 and 6. Fe was an important constituent of the octahedral layer of smectite.

Key Words

Low temperature Smectite Sodium hydroxide concentration Synthesis Volcanic glass Zeolites 


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Copyright information

© The Clay Minerals Society 1993

Authors and Affiliations

  • Katsutoshi Tomita
    • 1
  • Hisanori Yamane
    • 2
  • Motoharu Kawano
    • 3
  1. 1.Institute of Earth Sciences, Faculty of ScienceKagoshima UniversityKagoshimaJapan
  2. 2.Institute for Materials ResearchTohoku UniversitySendai-shiJapan
  3. 3.Department of Environmental Sciences and Technology, Faculty of AgricultureKagoshima UniversityKagoshimaJapan

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