Nificance of the Isoelectric Point for the Purifi- Cation of Amphoteric Colloids. by Jacques Loeb
نویسنده
چکیده
"Aluminium hydroxide dissolves in acids. From its solution in hydrochloric acid, an aluminlum salt, aluminium chloride A1C13, 6H20, is obtained. I t also combines with strong bases, dissolving for instance in a solution of sodium hydroxide and forming an aluminate, NaA102 . . . . According to the best knowledge we have on the subject, the molecule of aluminium hydroxide has the following structure or arrangement of its atoms AI(-O-H)3. I t is readily seen that the cleavage of the molecules may produce, either aluminium and hydroxide ions, characteristic ions of a base, or aluminate and hydrogen ions, characteristic ions of an acid: A1 +++ + 3 OH ~ A1 (-O-H)3 -~ A102 + H + + H20. ''1
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Programmable co-assembly of oppositely charged microgels.
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