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Water Chemistry


Water Chemistry

Structure of Water

The Bent Structure and Polarity of Water
Dipole Moment and Autoionization
Phase Transition Temperatures and the Density of Water and Ice
Heat Capacity and Latent Heat of Fusion and Vaporization
Adhesion and Cohesion of Water

Solutions and Their Colligative Properties

Solutions
Colligative Properties
Osmotic Pressure
Vapor Pressure
Boiling Point Elevation
Freezing Point Depression

Dispersions

Dispersions
Sedimentation and Creaming
Ostwald’s Ripening
Stabilization and Destabilization of Dispersions
Dispersion Interfaces and Amphiphilic Molecules
DLVO Theory and the Gibbs-Marangoni-Effect

Water Activity and Types of Water in Foods

Moisture Content and Water Activity
Bound, Capillary, and Free Water
Water activity affects food quality and stability

Frozen Foods, Ice Crystals, and Glassy Foods

Removing Heat
Undercooling, Nucleation, & Crystal Growth
Post-Crystallization Annealing
Glass Transitions & Glassy Foods
Frozen Glasses
Dried or Boiled Glasses