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The growth of single crystals by controlled diffusion in silica gel
Author(s) -
Rubin Bernard
Publication year - 1969
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690150215
Subject(s) - tetrahydrate , tartrate , silica gel , diffusion , crystal (programming language) , crystal growth , chemistry , chemical engineering , inorganic chemistry , materials science , calcium , crystallography , mineralogy , chromatography , crystal structure , organic chemistry , thermodynamics , physics , computer science , programming language , engineering
Monocrystals of calcium tartrate tetrahydrate, neodymium‐doped calcium tartrate tetrahydrate, and cuprous chloride have been grown by controlled diffusion in silica gel using both metathetical and decomplexation reactions. Conditions for the optimum growth of the crystals are given and it is shown how the p H of the gel, the temperature of its formation, the concentration of the reactants which make up the gel, and the concentration of the reactants which result in the crystal are important in attaining good single crystal products. Crystals have been grown up to 11 mm. on edge in three to four weeks, and in many cases take on a form which, to all outward appearances, seem to have been cut and polished.