RES³T - Rossendorf Expert System for Surface and Sorption Thermodynamics

Details Sample Characterization



Mineral: Biotite
Reference: FPLNS22
Deposit: Olkiluoto site (Geological Survey of Finland)
Preparation: milled and sieved; pretreated with analytical grade KClO4 to exchange Ca and Na impurities with K from biotite surface’s sorption sites as further specified in (Armarego and Chai, 2012; Li et al., 2020); fifty grams of the crushed biotite sample was packed into a glass cation exchange column and 0.1 M KClO4 was pumped through the column with a peristaltic pump at the flow rate of 4 ml/h for two weeks; for the last two days of wash, 0.01 M KClO4 and MilliQ-water were pumped through the column to remove excess K; dried in a vacuum oven overnight
CEC: 1.264 ± 0.042 meq/100g
Composition: mainly phlogopite
Sample characterized via: ☑ X-ray Diffraction (XRD)
 
1 data sets were retrieved