Deicing salt | what is deicing salt and why we call it the road salt ?

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Deicing salt for roads

Deicing salt for roads

In  winter season,

All Roads covered with snow , prevents you from smooth driving. the windshield and the side mirrors covers with Frost making vision impossible.  Therefore, when you hit the road slow down, and delays may be occurr in the snowy spots,  even when the roads are treated with deicing salt, you must be careful.

You need to keep a long distance from the road user in front. When you use your breaks, the stopping distance can be longer than that on the dry roads. Your car may slide a few meters before it finally stops. This is a crucial point you have to take care of. Also, you may go prepared with jump leads and a shovel- just in case. That is why you see trucks spreading salt over roads, so you drive more smoothly and safely.

How does deicing salt work?

If you are living in North Europe or Canada, it will be familiar for you to see deicing trucks. The truck spreads this salt on the sideways, streets, and highways. You may hear that this salt is to melt the ice. In fact, the ice does not really melt. This may be surprising to you. This salt works some other way.

Why trucks spreads deicing salt on the road?

Deicing salt works by decreasing the freezing point of water. This means that water will no longer freeze at zero degrees Celsius. After adding 10% salt solution, water will freeze at -6 degrees Celsius. When the salt solution concentration increases to 20%, water will freeze at -16 Celsius. However, salt should not be added as-is  in its dry form to snow, this will not work. To make a salt solution, water should be added. The salt in the solution form works better and faster.

A brine solution is used in such situation, and  the salt trucks spread roads with salt pretreated with water. After the spread of brine solution, snow will hardly be formed at zero temperature. Roads will be clear of ice for a long time before you will see these trucks again.

What is deicing salt?

Deicing salt, also called halite, is either sea salt or rock salt. You may see government trucks spread deicing salt over the snowy roads to remove ice or snow for preventing or delaying ice or snow formation.

The  deicing salt is sodium chloride exactly as table salt. However, table salt is refined and fortified with iodine or iron. Therefore, you may think it is a table salt in its raw and natural form.

The salt composes of a mixture of fine and coarse salt. Deicing salt in this form provides a sterling result. Deicing salt is the perfect solution for driveways and carparks. So, you can drive safely on the highway and park safely as well. This salt works as both protective and curative agent. This means deicing salt prevent ice formation over roads and when ice or snow are formed, then they can be removed easily.

 

Where the deicing salt comes from?

Deicing salt is either raw rock salt or sea salt, and they are from different sources with the same chemical composition sodium chloride, and they are used to open the snowy roads.

Here, we are going to discuss each in some details.

Rock deicing salt

Rock salt comes from a place in the East of Egypt called Siwa oasis, and considered as the superior compared to  other types of salt because it is more natural and  more pure. Why there has been rock salt in the desert? It is a good question. Millions of years ago, this place of North Africa was not a desert. Sea was there. When water evaporates and desertification creeps over the North of Africa. Water evaporates and salts remain in the form of a solid state that we call rocks. Hence, the name rock salt.

The Egyptian salt comes with a purity of 98% produced by our company (miscal), and considered as the most effective deicing salt ever. It is good for the highways, main roads, and runways where you need the most effective and powerful deicing salt.

Sea salt

Sea salt is coarse and naturally presented in the environment and extracted sea salt is eco-friendly and can be used safely as a deicing salt in the roads.

The extracted Sea salt is formed by evaporation of water in closed water bodies such as closed seas, lakes, or lagoons. The sediment of this salt is composed of sodium chloride in a crystalline form, and harvested and prepared to sue for deicing  the roads.

Why sodium chloride is the best deicing salts

Sodium chloride as a deicing salt is the best choice for our roads and parking areas because of its high safety profile and being eco-friendly. Moreover, sodium chloride deicing salt can be stored for a long period of time without decaying or changing the composition. That is to say, the efficacy remains the same after a long period of storage. In additions, Sodium Chloride deicing salt can be transported with no trouble at all. One can get the salt anywhere without painful procedures. Finally, it is worth noting that Sodium Chloride deicing salt is easy to grit and not harmful to the human skin or to the clothing.

 

The result of using Sodium Chloride

Safe deicing salt of Sodium Chloride is using over the highways, main roads, and side roads. Then, the freezing point of the ice goes down to -12 degrees Celsius. Therefore, Sodium Chloride deicing salt can prevent the formation of ice when the temperature is zero degree Celsius.

Adding Calcium Chloride to Sodium Chloride will create a mixture that decreasing the freezing point of ice down to minus 20 degrees Celsius. Such a mixture is useful in places where the temperature is sub-zero degree Celsius.

How to use the deicing salt

Here are a few tips and pearls to use the deicing salt economically to avoid the accumulation of snow or ice on your drive or at your doorway. You needn’t wait until the snow falls. Then, it will be too late.

The best thing to keep your drive and doorway free from snow is preventive gritting. Preventive gritting is economically sound. As 1 kg of preventive gritting equals 5 kg of curative salt. What you need to do is to follow up on the weather forecast on TV or at your weather app. It is worth mentioning that spreading salt over the drive, road surface, or at your car park before the snowfall will save you a lot of trouble. You need to clear the snow first then, tackle the surface area with salt. The final results will be great.

In snow shower, the best thing you can do is to remove the snow first before gritting. Removing the snow first will give you the maximum effect and wonderful results.

Which type of deicing salt you may use?

It is better to choose the salt with coarse grains. The reason is that although coarse grain will take a longer time than the small grain to show the favorable effect, your drive and doorway will remain snow-free for a long time. It is a good idea to use a salt with a combination of both fine and coarse grains to get the optimum results.

what about the amount and the best way of spreading the deicing salt?

A handful of salt is sufficient for every square meter of the car park or drive road.  You should spread the salt evenly over the whole area. Accumulation of salt over one square meter is useless. A large area will need a gritting lorry to complete the job.

Finally, the deicing salt catches moisture easily and forms lumps.It is worth noting here that Micsal adds anticaking agent to prevent lump formation. However, it is better to keep salt in a dry place. Salt containers are the sound solution for this purpose. So, you will get your extra salt when you need it. Don’t waste a penny.

For more information go to https://www.sciencedirect.com/science/article/pii/S0048969708007638

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