Heat of Crystallization
| Formula / Notation | ΔH_cryst = −ΔH_fus |
|---|---|
| Also Known As | Enthalpy of crystallization, latent heat of crystallization, heat of solidification, heat of freezing |
What is Heat of Crystallization?
The heat of crystallization (enthalpy of crystallization) is the heat released when a substance transitions from a liquid (or solution) to a crystalline solid. It is equal in magnitude but opposite in sign to the heat of fusion. This energy is released as the molecules organize into an ordered crystalline lattice. It is an exothermic process.
Formula & Notation
Other Names / Synonyms: Enthalpy of crystallization, latent heat of crystallization, heat of solidification, heat of freezing
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The heat of crystallization (enthalpy of crystallization) is the heat released when a substance transitions from a liquid (or solution) to a crystalline solid. It is equal in magnitude but opposite in sign to the heat of fusion. This energy is released as the molecules organize into an ordered crystalline lattice. It is an exothermic process.
Heat pack and hand warmer technology (sodium acetate). Industrial crystallization processes. Purification by recrystallization. Understanding frost formation. Crystal growth technology. Phase change materials for thermal energy storage. Concrete hydration (is a form of crystallization).
Supercooled liquids that crystallize suddenly can release significant heat. Industrial crystallization equipment must manage heat removal. Recrystallization solvents may be flammable or toxic.
The formula or notation for Heat of Crystallization is: ΔH_cryst = −ΔH_fus