Matter
- Name
- Na-exchanged saponite SAP size-fraction <2 µm
- Family
- mineral
- Database
- Experimentalists
- Parent matter
- Synthetic high-charge Na-saponite
- Origins
- laboratory
- Provider
- CML laboratory
- Local reference code
- NaSAP_LSD
- Preparation
- extracted components
- Method
- Monomineralic sample purified by size separation that had undergone cationic exchange followed by centrifugation
- Phase type
- solid
- Component type (group)
- mineral (silicate mineral)
- Texture
- aggregated grains
- Type of porosity
- particulate
- Texture
- clay-like
- Grain sizes
-
Grains Size min Size max Size median Size width Size mass fraction Grain shape #1 2.0 ${\mu}m$ 1.0 $\pm$ 0.05 platy - Size method
- Size-fraction was separated in a centrifuge (Stoke's Law) but not verified
- Title
- Purification, size separation, and cation exchange
- Matters
- Materials
- Matter
- Na-exchanged saponite SAP size-fraction <2 µm (this matter)
- Processing steps
-
Step Date Type Process Changes #1 2013-03-01 mechanical Dispersion with ultrasonic probe Disaggregation of aggegates in order to create suspension of clay particles #2 2013-03-01 mechanical Centrifugagion in deionized water Separation of <2 micron fraction according to Stoke's Law #3 2013-03-06 chemical Reaction with 100 ml of 0.5 M NaCl repeated five times Exchange of exchangeable cations for Ca #4 2013-03-06 fluid physical Dialysis in deionized water. Water was changed until conductivity of water dropped below 1 microsiemens Removal of excess adsorbed cations and anions #5 2013-03-10 thermal Drying in an oven at 60C Drying of a sample #6 2013-03-12 mechanical Crushing in an agate mortar Disintegration of a sample in order to create powder