74th Annual Meeting of the APS Division of Fluid Dynamics (November 21, 2021 — November 23, 2021)

P0026: Sodium Acetate Crystals

  • Octavio Orona, Penn State University
  • Mikaela Luksic, Penn State University
  • Trevor Moser, Penn State University
  • Heidi Reuter, Penn State University

Sodium acetate crystallization, colloquially known as “hot ice,” is an exothermic process. When sodium acetate trihydrate is dissolved in hot water, the oppositely charged ions dissociate to create a saturated salt solution. If the mixture is cooled to the melting point of the saturated salt, ion reassociation can be sparked by providing crystals a salt surface on which to form. The result of crystallization is achieved with a blue coated coloring representing its mildly basic properties.


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