Observation of Freezing Phenomena in Saturated Mixture 

Masaru MIZOGUCHI

Faculty of Bioresources, Mie University 

Abstract 

Several saturated mixtures, such as methyl orange solution, agar, 
glass beads, bentonite, and sand, were frozen downward using a 
specially designed freezing apparatus to grasp the characteristics 
of freezing phenomena. Exclusion of solute with advancing freezing 
front was observed in the methyl orange solution, while not in the 
column of agar. It was found from comparison of the temperature 
profiles which were measured in each freezing sample that 
macroscopic water convection did not occur during freezing in the 
columns of agar, clay, and sand while it occurred in the methyl 
orange solution. 

Key words: 
Freezing phenomena, Exclusion of solution, Temperature profiles