Hydrothermal single crystal growth of calcite in ammonium acetate solution

Kazumichi Yanagisawa, Qi Feng, Koji Ioku, Nakamichi Yamasaki

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Calcite single crystals were successfully grown in newly discovered ammonium acetate solution, an organic salt solution, under mild hydrothermal conditions below 250°C at saturated vapor pressure. The growth rate increased with the increase in growth temperature, temperature difference, and concentration of ammonium acetate solution. Even in a dilute ammonium acetate solution of 0.07M with a pH of 7.0, the seed crystal grew at a growth rate of 57 μm/day at 235°C with a temperature difference of 15°C. The grown crystal under these conditions was optically transparent and not contaminated with the mineralizer. Ammonium acetate solution has a large difference as a mineralizer for crystal growth of calcite from other inorganic salt solutions; In ammonium acetate solution, new planes, the f and a planes, developed on the seed crystal bound by the r planes.

Original languageEnglish
Pages (from-to)285-294
Number of pages10
JournalJournal of Crystal Growth
Volume163
Issue number3
DOIs
Publication statusPublished - 1996 Jun
Externally publishedYes

Fingerprint

Calcium Carbonate
Calcite
Crystallization
calcite
Crystal growth
crystal growth
acetates
Single crystals
single crystals
Crystals
seeds
temperature gradients
Salts
salts
crystals
Growth temperature
ammonium acetate
Vapor pressure
vapor pressure
Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Hydrothermal single crystal growth of calcite in ammonium acetate solution. / Yanagisawa, Kazumichi; Feng, Qi; Ioku, Koji; Yamasaki, Nakamichi.

In: Journal of Crystal Growth, Vol. 163, No. 3, 06.1996, p. 285-294.

Research output: Contribution to journalArticle

Yanagisawa, Kazumichi ; Feng, Qi ; Ioku, Koji ; Yamasaki, Nakamichi. / Hydrothermal single crystal growth of calcite in ammonium acetate solution. In: Journal of Crystal Growth. 1996 ; Vol. 163, No. 3. pp. 285-294.
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