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Colloid properties: suspensions of 1 nm-1 μm particles; colloidal stability depends on pH, ionic strength, surface charge.
Stapsgewijze handleiding
- 1Input particle size, charge, solution composition
- 2Calculate DLVO potential or colloidal stability
- 3Predict aggregation/sedimentation
Uitgewerkte voorbeelden
Invoer
Oil-in-water emulsion: stability improved by surfactants reducing interfacial tension
Resultaat
Surfactant concentration critical
Veelgemaakte fouten om te vermijden
- ✕Neglecting DLVO interactions
- ✕Not accounting for pH effects on charge
Veelgestelde vragen
Why are colloids kinetically stable?
Brownian motion prevents settling; particles too small for gravity, too fast for diffusion aggregation.
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