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Titolo:
Morphological control of Ca3Al2(OH)(12)
Autore:
Fogg, AM; Freij, AJ; Oliveira, A; Rohl, AL; Ogden, MI; Parkinson, GM;
Indirizzi:
Curtin Univ Technol, Sch Appl Chem, AJ Parker Cooperat Res Ctr Hydromet, Perth, WA 6845, Australia Curtin Univ Technol Perth WA Australia 6845 et, Perth, WA 6845, Australia
Titolo Testata:
JOURNAL OF CRYSTAL GROWTH
fascicolo: 1, volume: 234, anno: 2002,
pagine: 255 - 262
SICI:
0022-0248(200201)234:1<255:MCOC>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
CALCITE SPHERULITES; AQUEOUS-SOLUTION; BAYER INDUSTRY; CRYSTALLIZATION; ADDITIVES; GROWTH; CARBONATE;
Keywords:
crystal morphology; industrial crystallization; inorganic compounds;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Fogg, AM Curtin Univ Technol, Sch Appl Chem, AJ Parker Cooperat Res Ctr Hydromet, POB U 1987, Perth, WA 6845, Australia Curtin Univ Technol POB U 1987 Perth WA Australia 6845 Australia
Citazione:
A.M. Fogg et al., "Morphological control of Ca3Al2(OH)(12)", J CRYST GR, 234(1), 2002, pp. 255-262

Abstract

The effect of a range of inorganic and organic crystal growth modifiers onthe morphology of Ca3Al2(OH)(12) has been studied. It has been found that some additives show a strong preference for a single crystal face forming polyhedral crystals whilst others are less selective, producing crystals with a less well-defined morphology. In this way sulphite and dithionite preferentially interact with the {111} face producing octahedral crystals and nitrilotriacetic acid stabilises. the {110} face forming rhombic dodecahedralcrystals. Phosphate, however, leads to the formation of small needle-like crystals and the organic acids, N(CH2CO2H)(2)(CH2PO3H2), N(CH2CO2H)(CH2PO3H2)(2), HN(CH2PO3H2)(2), and H3CN(CH2PO3H2)(2), produce near spherical crystals. (C) 2002 Elsevier Science B.V.. All rights reserved.

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Documento generato il 30/09/20 alle ore 01:33:15