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FUNDAMENTAL STUDY OF CLAY: PREPARATION OF A PURIFIED KAOLINITE SUSPENSION, I *
Author(s) -
Johnson A. L.,
Norton F. H.
Publication year - 1941
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1941.tb14822.x
Subject(s) - kaolinite , suspension (topology) , clay minerals , chemistry , electrodialysis , sodium hydroxide , sodium perborate , hydroxide , hydrogen peroxide , slurry , titration , nuclear chemistry , chemical engineering , mineralogy , inorganic chemistry , materials science , membrane , organic chemistry , biochemistry , mathematics , homotopy , pure mathematics , engineering , composite material
A bstract A method of preparing clean clay suspensions is described. Organic matter is removed by hydrogen peroxide and sodium hydroxide digestion, followed by an electro‐dialysis treatment to remove other inorganic salts and to prepare a clay‐water suspension. After NaOH is added, viscosity and titration values are given for ( a ) a regular water‐washed Florida clay, ( b ) the same clay after electrodialysis, and ( c ) the same clay after a thorough cleaning according to the method described. If the sample contains lignite, a clean clay exhibits rheopexy at certain concentrations of NaOH.