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Freezing point osmotic pressure gauge OSM2000 produced by our company with independent research and development is in accordance with Raoul freezing point theory, based on the solution freezing point declined value proportional to the solution molar.
OSM3000 Freezing Point Osmometer is based on Raoult's freezing point theory, which is based on the proportional relationship between the freezing point depression of a solution and the molar concentration of the solution.