Linked from
The 23 pages that link to Freezing-point depression, each with the reason it gives.
SalinityRelated: Saltier water freezes at a lower temperature than fresher water.
BrineRelated: Dissolved salts let brine remain liquid below water’s normal freezing point.
Ethylene glycolRelated: Dissolved ethylene glycol lowers water's freezing point in coolant mixtures.
FreezingRelated: Sugars and salts in food lower the temperature at which its water freezes.
OsmolalityRelated: Clinical osmometers commonly infer osmolality from this temperature shift.
Road saltNarrower topic: Dissolved road salt lowers water’s freezing point, delaying ice formation.
GelatoRelated: Sugar keeps gelato softer and scoopable below water’s freezing point.
Frozen custardRelated: Sugar and other dissolved ingredients affect how firmly the custard freezes.
KulfiRelated: Sugar and milk solutes affect how kulfi freezes and how firm it becomes.