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Morphology analysis of magnesium hydroxide prepared by magnesium oxide hydration within seawater
Author(s) -
Tang Xiaojia,
Guo Lin,
Liu Quan,
Li Yeye,
Li Tie,
Zhu Yimin
Publication year - 2015
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201400122
Subject(s) - magnesium , seawater , hydroxide , oxide , inorganic chemistry , chemistry , morphology (biology) , chemical engineering , materials science , metallurgy , geology , oceanography , engineering , paleontology
In order to investigate the microstructure of magnesium oxide hydration product within seawater, two reaction conditions (liquid‐solid and gas‐liquid‐solid) and two solutions (seawater and deionized water) were adopted for magnesium oxide hydration. The characterization of the hydration product using X‐Ray diffraction and scanning electron microscope was performed. Experimental results indicate that cations and anions in seawater promote the hydration. Most of the hydration products within seawater system display flower‐like morphology, but the agglomeration phenomenon is not obvious within deionized water system, especially for the supernatant layer products within deionized water system under gas‐liquid‐solid reaction condition. There was no stratification phenomenon occurred when MgO hydrated with seawater under three‐phase reaction condition.