Solubility measurement of a metastable achiral crystal of sodium chlorate in solution growth

Publication date: 15 May 2014
Source:Journal of Crystal Growth, Volume 394
Author(s): Hiromasa Niinomi , Atsushi Horio , Shunta Harada , Toru Ujihara , Hitoshi Miura , Yuki Kimura , Katsuo Tsukamoto
The solubility of the metastable achiral monoclinic phase in NaClO3 crystallization from an aqueous solution, which appears prior to the nucleation of chiral crystals, was successfully measured in the range from 10°C to 23°C. Antisolvent crystallization method was used to obtain metastable crystals for the measurement. The solubility was determined to be about 1.6 times higher than that of the chiral stable cubic phase by observing growth or dissolution of the crystal in aqueous solution at the temperature and concentration of which is predetermined.