Cryoscopy definition

However, cryoscopy in ionic melts may sometimes provide ambiguous results. These problems occur in such cases, when association reactions take place in the solvent and the molecular mass is not definitely known. Also the uncertainty in the value of the heat of fusion can result in incorrect results. On the other hand, the interpretation of the cryoscopic result could be sometimes uncertain, especially then, when the number of new particles can be caused by two or more chemical reactions. 

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