Colloidal dispersions
Water can also be a medium for colloidal dispersions (Kuh-LOYD-ul dis –PUR-zhuns).
A colloidal dispersion is a homogeneous mixture that is not a true solution .
A colloidal dispersion differs form a true solution in the relatively larger size of the solute particles and their larger surface area.
These particles are called colloids (KAHL-oyds).
Although colloids are larger that atoms, ions, or molecules, they are still too small to be seen with a microscope.
They are not so large that they settle out of the colloidal dispersion.
Instead they remain dispersed in, or scattered throughout, the solvent.
Hydrogen atom
Average molecule
Colloid
Visible particle
Sodium chloride is the solute and water is the solvent in this beaker of salt water.
A colloid particle is larger than an atom or a molecule , but still not large enough to be seen.
Colloidal dispersionsWater can also be a medium for colloidal dispersions (Kuh-LOYD-ul dis –PUR-zhuns).A colloidal dispersion is a homogeneous mixture that is not a true solution .A colloidal dispersion differs form a true solution in the relatively larger size of the solute particles and their larger surface area.These particles are called colloids (KAHL-oyds). Although colloids are larger that atoms, ions, or molecules, they are still too small to be seen with a microscope.They are not so large that they settle out of the colloidal dispersion.Instead they remain dispersed in, or scattered throughout, the solvent.Hydrogen atomAverage moleculeColloidVisible particleSodium chloride is the solute and water is the solvent in this beaker of salt water.A colloid particle is larger than an atom or a molecule , but still not large enough to be seen.
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Colloidal dispersions
Water can also be a medium for colloidal dispersions (Kuh-LOYD-ul dis –PUR-zhuns).
A colloidal dispersion is a homogeneous mixture that is not a true solution .
A colloidal dispersion differs form a true solution in the relatively larger size of the solute particles and their larger surface area.
These particles are called colloids (KAHL-oyds).
Although colloids are larger that atoms, ions, or molecules, they are still too small to be seen with a microscope.
They are not so large that they settle out of the colloidal dispersion.
Instead they remain dispersed in, or scattered throughout, the solvent.
Hydrogen atom
Average molecule
Colloid
Visible particle
Sodium chloride is the solute and water is the solvent in this beaker of salt water.
A colloid particle is larger than an atom or a molecule , but still not large enough to be seen.
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