True Solution The dispersion of particle < 1 nm in liquid. Examples: sugar, lactose, minerals, and vitamins. Colloidal Dispersion (SOL) Dispersion of particle sizes between 10-100 nm in liquid. Common colloids: dispersion of proteins, large molecular salts. Example: milk.True Solution The dispersion of particle < 1 nm in liquid. Examples: sugar, lactose, minerals, and vitamins. Colloidal Dispersion (SOL) Dispersion of particle sizes between 10-100 nm in liquid. Common colloids: dispersion of proteins, large molecular salts. Example: milk