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Growth of Single Crystals of Calcium Sulfite in Silica Gels
Author(s) -
Patil S. N.,
Rao A. Venkateswara
Publication year - 1991
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.2170260706
Subject(s) - dissolution , aqueous solution , recrystallization (geology) , sulfite , calcium , chemical engineering , chemistry , morphology (biology) , materials science , inorganic chemistry , crystallography , mineralogy , organic chemistry , paleontology , genetics , engineering , biology
The paper reports on the growth of single crystals of calcium sulfite, CaSO 3 0.5 H 2 O, by reaction of aqueous solutions of CaCl 2 and Na 2 SO 3 in silica gels. Na 2 SO 3 incorporated gels give spherulites whereas CaCl 2 incorporated gels give transparent single crystals. The morphology of the crystals depends on the region of the gel and the type of reactant incorporated into the gel‐forming solution. Initially formed precipitate and dendrites are converted into good quality single crystals by dissolution and recrystallization processes.