Dissolution of powders - Solubility of powders
3 important questions on Dissolution of powders - Solubility of powders
What are the 3 steps in dissolving (or suspending) powders?
- Wetting of powder surface by the solvent
- Diffusion of the solvent into the powder
- Complete dissolution of the powder into the solvent
What is solid spreading nucleation?
When a hydrophilic liquid is placed in a very hydrophobic powder, the hydrophobic powder spreads out over the surface of the large single droplet.
These powder-covered liquid drops are known as liquid pearls or liquid marbles.
These powder-covered liquid drops are known as liquid pearls or liquid marbles.
Which 2 phenomena are important in the uptake of solvents by materials?
- Molecular diffusion
- Capillary diffusion
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