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Effects of Oxidation State of Octahedral Iron on Clay Swelling
Iron Nontronite Oxidation Reduction Smectite Swelling
2012/2/6
Three montmorillonites and a nontronite were reduced by sodium dithionite to obtain different amounts of Fe2+ in their octahedral sites. The mass ratio of water to clay, mw/mc, was determined as a fun...
A Model of Clay Swelling and Tactoid Formation
Electrostatic forces Mica Pyrophyllite Tactoid Talc Swelling Vermiculite
2012/2/8
An electrostatic model for the stability of clay tactoids (stacks of parallel clay platelets at …10 ∈ separation) in an aqueous solution has been developed. The counter ions located in the interstitia...