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

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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