An isothermal (30 °C) study of heterogeneous equilibria in the sucrose (C12H22O11)–calcium hydroxide (Ca(OH)2)–water system

Solid–liquid equilibria in the C12H22O11–Ca(OH)2–H2O system have been determined at 30 °C. Two phases C12H22O11·3Ca(OH)2 and C12H22O11·2Ca (OH)2 have been evidenced, and solubility (liquidus) curves have been determined. It is thus shown that these ternary phases exhibit incongruent solubilities at 30 °C. These solid phases were characterized using Infrared Spectroscopy (IR), Scanning Electron Microscopy (SEM) and Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES).

► Isothermal 30 °C study of heterogeneous equilibria in C12H22O11–Ca(OH)2–H2O system.
► Solubility (liquidus) curves have been determined.
► Two phases C12H22O11·3Ca(OH)2 and C12H22O11·2Ca (OH)2 have been evidenced.
► This work shows that these ternary phases exhibit incongruent solubilities at 30 °C.