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Let's first understand how snow melting agents melt snow. The principle of snow melting agents is not actually complex. From a chemical perspective, they are some salt substances, such as the common edible salt in our kitchen. They can lower the freezing point of water. Originally, a mixture of ice and water would appear at zero degrees Celsius, and with the addition of some salt, the freezing temperature would drop to minus ten degrees Celsius. If calcium chloride was added, The temperature at the freezing point will drop to around twenty degrees Celsius. Although the composition of ordinary snow melting agent is sodium chloride as the salt seen at home, the salt in snow melting agent is not pure except sodium chloride, and there are calcium chloride or Magnesium chloride, so snow melting agent cannot be eaten.

Is snowmelt harmful? The answer is yes, snowmelt is indeed harmful.

Snow melting agents can corrode car chassis because they contain salt, which dissolves in water and conducts electricity. The metal used in car chassis is usually alloy. Under normal circumstances, they have a certain degree of corrosion resistance. However, when the car chassis contacts the saline snow water, it will produce the Primary battery effect, which will indeed accelerate the corrosion and rust of the car chassis. Therefore, when the weather is clear, it is important to wash the car as soon as possible. In addition, snow melting agents can accelerate road aging. Nowadays, highways are mainly asphalt or cement roads. When saline water infiltrates, the internal structure will accelerate aging, leading to a decrease in road service life. Can snow melting agents really cause damage to the eyes? In theory, it is possible, but in reality, this possibility is not significant because only the main streets and bridges in cities use snow melting agents, and it is difficult for humans to play on the motorway.

However, snowmelt is an indispensable chemical raw material that we live in this vast world, as safety is paramount and road safety cannot be ignored.