De-icers are substances used to remove or prevent the formation of ice on surfaces, particularly roads, sidewalks, and runways. They work by lowering the freezing point of water, which helps to melt existing ice and prevent new ice from forming. Common de-icing agents include sodium chloride, calcium chloride, and magnesium chloride, each with varying effectiveness and environmental impacts. In addition to traditional salt-based de-icers, there are also eco-friendly alternatives made from materials like beet juice or cheese brine. These alternatives aim to reduce the negative effects on vegetation and water quality while still providing effective ice control during winter weather conditions.