0509300 - ÚCHP 2020 RIV US eng J - Journal Article
Liu, B. - Asadzadeh, Behnaz - Yan, W.
Solubility Determination and Modeling of EGCG Peracetate in 12 Pure Solvents at Temperatures from 278.15 to 318.15 K.
Journal of Chemical and Engineering Data. Roč. 64, č. 12 (2019), s. 5218-5224. ISSN 0021-9568. E-ISSN 1520-5134
Grant - others:NKRDP(CN) 2017YFF0211000
Institutional support: RVO:67985858
Keywords : atmospheric pressure * X ray powder diffraction * scanning electron microscopy
OECD category: Physical chemistry
Impact factor: 2.369, year: 2019 ; AIS: 0.411, rok: 2019
Method of publishing: Limited access
DOI: https://doi.org/10.1021/acs.jced.9b00428

The solubility of (−)-epigallocatechin gallate (EGCG) peracetate in 12 pure solvents (methanol, ethanol, 1-propanol, 1-butanol, 2-propanol, 2-butanol, 1-pentanol, 1-hexanol, 2-methoxyethanol, 2-ethoxyethanol, 2-propoxyethanol, and 2-butoxyethanol) was measured using the static method at the temperature range 278.15−318.15 K under atmospheric pressure. The solubility of EGCG peracetate in the selected solvents increased with increasing temperature in 12 solvents, and the most notable change was found in methanol. The obtained solubility data were correlated with the van’t Hoff equation, the modified Apelblat equation, the λh equation, and the nonrandom two-liquid model. Furthermore, solid formsof EGCG peracetate in 12 pure solvents were studied by a scanning electron microscope and X-ray powder diffraction. The obtained solubility values would be helpful in the purification and crystallization process of EGCG peracetate.
Permanent Link: http://hdl.handle.net/11104/0305540