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Precipitation of Alkaline‐Earth Metal Silicate Hydrates from Aqueous Solution: Ionic Equilibria, Crystalline Phases and Precipitation Mechanisms
Author(s) -
Packter A.
Publication year - 1986
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.2170210502
Subject(s) - silicate , precipitation , alkaline earth metal , aqueous solution , inorganic chemistry , strontium , chemistry , supersaturation , hydrate , metal hydroxide , barium , magnesium , metal , hydroxide , physics , organic chemistry , meteorology
Abstract The precipitations of magnesium, calcium, strontium, barium and zinc silicate hydrates from aqueous solutions and suspensions at ambient temperature to 200 °C are surveyed. The relevant ionic equilibria (silicate and polysilicate anion formation, hydroxocation formation, alkaline‐earth metal silicate hydrate and hydroxide precipitation from supersaturated solution) that may influence these precipitations are examined. ‐ The microcrystalline and crystalline phases precipitated in systems of different cation/silicate compositions and temperatures are tabulated. Precipitation mechanisms are analysed.