Road salt, or sodium chloride, works by lowering the freezing point of water, causing ice to melt even when the temperature is below 32 degrees.
Outreach Materials - Salt Smart Collaborative
When's the best time to salt your walkway during a storm and other tips
How Does Salt Melt Snow and Ice? - Salt Smart Collaborative
Outreach Materials - Salt Smart Collaborative
Road Salt Is Wreaking Havoc On Our Drinking Water and the Environment
Madison announces salt route reduction to reduce environmental hazards - The Daily Cardinal
Salt Ice Research Paper
Melting point -- the environmental impact of overusing winter salt: Around The Town
Paraffin offers superior solution to road salt for melting snow, ice - The American Ceramic Society