Abstract
It is well known in colloid chemistry that the freezing of gels may cause coagulation, which is in some cases irreversible. We have found little evidence, however, that this phenomenon has been used to any great extent as a laboratory technique to simplify the bulk preparation of materials of a colloidal character.
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FORSYTH, W., FRASER, G. Freezing as an Aid in the Drying and Purification of Humus and Allied Materials. Nature 160, 607 (1947). https://doi.org/10.1038/160607a0
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DOI: https://doi.org/10.1038/160607a0
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