Freezing point depression osmometer is used to determine the osmotic
strength of a solution, as osmotically active compounds depress the freezing
point of a solution. This type of osmometer is used for measuring the osmotic
strength of a solution, colloid, or compound.
depression is also used to measure the degree of dissociation or the molar mass
of the solute. This kind of measurement is called cryoscopy (Greek cryo = cold, scopos = observe
"observe the cold") and relies on exact measurement of the freezing
point. the procedure is primarily useful for organic compounds using a
/ Cryoscopes use super-cooled water phenomenon to measure the freezing point of
liquids like milk, drugs etc.
Super cooling, also known as under
cooling, is the process of lowering the temperature of a liquid or a gas below
its freezing point without it becoming a solid. A liquid below its standard
freezing point will crystallize in the presence of a seed crystal or nucleus
around which a crystal structure can form creating a solid.