Summary
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1.
Data relating to the partition of small amounts of a substance between the liquid and solid phases in systems consisting of ammonium chloride and the chlorides of the tervalent metals chromium and iron indicate that there is a lower limit for the formation of the mixed crystals NH4CI-FeCl3 and NH4Cl-CrCl3. and that these mixed crystals are colloidal in nature.
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2.
Partition in systems consisting of ammonium chloride and the chlorides of the bivalent metals manganese and copper is characterized by a partition coefficient that has a constant value over a wide range of concentrations.
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3.
Greenberg and Walden's scheme provides a satisfactory explanation of the difference in behavior between the chlorides of bivalent Mn and Cu and those of tervalent Fe and Cr when undergoing partition between the saturated solution. and crystals of ammonium chloride.
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