Abstract
The influence of layer charge as well as fee place on smectite hydration was examined. Circulation of layers with different hydration states (dried out– 0W, monohydrated– 1W, bihydrated– 2W, or tri-hydrated– 3W) within smectite crystals often leads to 2 distinct payments to the X-ray diffraction pattern, dioctahedral smectite each contribution having various layer kinds arbitrarily interstratified. Raised hydration heterogeneity in beidellite originates additionally from the existence of 0W (non-expandable) as well as of 1W layers under high family member humidity (RH) problems.
For montmorillonite and also beidellite, the boost of layer fee moves the 2W-to-1W and the 1W-to-0W shifts towards lower RH worths. For all samples, layer density of 0, 1, as well as 2W layer kinds was similar to that determined for low-charge SWy-1 montmorillonite (Source Clay SWy-1), and no change of layer thickness was observed as a feature of the amount or of the area of layer fee. However, layer density raised with enhancing RH problems.
