A new cryoscopic micro-method for the determination of molecular weights

A method is described for molecular weight determination based on a temperature-heat content curve About 2 mg of substance is required The method is applicable even when solute and solvent form mixed crystals. A wide variety of solvents may be used. The method may yield good results in the polymer field.The accuracy obtained is better than 1%. The new method appears to be more reliable and accurate than known cryobcopic methods