... particles (disperse phase) and the liquid of the continuous phase. E.g. sols and gels If the continuous phase is water, these colloids are said to be hydrophilic (they are also known as hydrosols) * Lyophobic colloids, in which there is no attraction between the particles of he disperse phase and the continuous phase. E.g. emulsions. If the continuous phase is water, these colloids are said to be hydrophobic. Properties of colloids The main properties of colloids that give the their unique nature and distinguish them from solutions and suspensions, are: 1. It must be heterogeneous - it must contain at least two different components (milk is a colloid but it often appears homogenous to the naked eye) 2. It must be multiphasic - it is a combination of solid/liquid, gas/liquid e.t.c 3. It must be must be insoluble - the particles wont dissolve in the medium. 4. It mustn't coagulate or precipitate - colloids ...

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