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Study on electric property at interface of positive sol of magnesium aluminum hydroxide
Author(s) -
Han ShuHua,
Xu ShanPing,
Hou WanGuo,
Sun DeJun,
Zhang ChmGuang,
Wang GuoTing
Publication year - 1997
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19970150404
Subject(s) - chemistry , isoelectric point , potentiometric titration , magnesium , titration , hydroxide , electrophoresis , aluminium , inorganic chemistry , point of zero charge , analytical chemistry (journal) , nuclear chemistry , chromatography , ion , biochemistry , organic chemistry , enzyme
The isoelectric point (IEP) and zero point of charge (ZPC) of magnesium aluminum hydroxide were studied by electrophoresis method, potentiometric titration method, and elemental analysis. Results showed that the charge of magnesium aluminum hydroxide was composed of variable charge and permanent positive charge. Because of the permanent positive charge, the IEP and ZPC obtained were higher than calculated. The IEP decreased and ZPC increased as X increased.