An emulsion technique suitable for the emulsification of inorganic salt hydrates with melting points above room temperature but below ∼100°C has been developed. When quenched many of these emulsified hydrates are found, by differential scanning calorimetry, to vitrify, whereas the bulk liquid hydrates always crystallize even when small samples are quenched into liquid nitrogen. The DSC determined glass transition temperatures lie on reasonable interpolations of existing Tg data for aqueous solutions of concentration both above and below that of the hydrate. These hydrate emulsions may prove useful for extended liquid-state studies of these compounds.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry