Growth of R2Me(SO4)(2)center dot 6H(2)O single crystals with due regard for solubility diagrams of the R2SO4-MeSO4-H2O systems (R = K, NH4; Me = Ni, Co)

Authors
Soboleva, LV Kirpichnikova, LF
Citation
Lv. Soboleva et Lf. Kirpichnikova, Growth of R2Me(SO4)(2)center dot 6H(2)O single crystals with due regard for solubility diagrams of the R2SO4-MeSO4-H2O systems (R = K, NH4; Me = Ni, Co), CRYSTALLO R, 46(2), 2001, pp. 306-309
Citations number
10
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CRYSTALLOGRAPHY REPORTS
ISSN journal
10637745 → ACNP
Volume
46
Issue
2
Year of publication
2001
Pages
306 - 309
Database
ISI
SICI code
1063-7745(200103/04)46:2<306:GORD6S>2.0.ZU;2-Z
Abstract
The optimum conditions for growing R2Me(SO4)(2) (.) 6H(2)O crystals are fou nd from the analysis of the R-2(+) SO4-Me2+SO4-H2O systems (R = K, MH4; Me = Ni, Co) in the temperature range from 55 to 25 degreesC. A new economical technology for growth of single crystals of double sulfate hexahydrates is developed, which allows the use of starting presynthesized solutions of hy drated or anhydrous K, Ni, Co, and (NH4) sulfates. Transparent K2Ni(SO4)(2) (.) 6H(2)O, K2Co(SO4) (.) 6H(2)O crystals (35-55) x (25-40) x 10 mm in siz e are grown on seeds by the method of slow cooling. (C) 2001 MAIK "Nauka/In terperiodica".