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Difference Between Epsom Salt And Rock Salt - Canada Salt


Difference Between Epsom Salt And Rock Salt

When you think of salt, most people probably think of the tiny white crystals you sprinkle on their food and find on restaurant tables. However, chemically speaking, Salt is Sodium Chloride, and many types of salts are available for usage. Some salts are used to give flavors for food, some are used for snow or ice removal, and some salts are used as sources for powerful healing. Read on to know the main differences between rock salt and Epsom salt used in our daily lives.

What Is Rock Salt?

Rock Salt is the most common salt used in our daily life formed from sodium and chloride. This form of salt occurs in beds of seas and is mined mainly by drying up water from the sea or large lakes. The harvested salt also contains some other minerals like potassium or zinc. Iodine is another essential mineral added to table salt.

What Is Epsom Salt?

Epsom salt is not salt but a naturally occurring mineral with a combination of Magnesium and sulfate. Epsom salt is named after the bitter saline spring in Surrey, England, where the salt was first found. Epsom salt is not used in food but is used as medicine and remedy for many ailments.

Differences Between Epsom Salt and Rock Salt

1. Molecular Difference

The main difference between Epsom salt and rock salt is the molecular structure. Rock salt consists of Sodium and Chloride, while Epsom salt is derived naturally from Epsomite, a combination of Magnesium and Sulphate.

2. Processing Of Salt

Rock salt is less processed and contains many other minerals and impurities. Rock salt is processed to form table salt that is used for cooking purposes. Rock salt is processed from seawater, while Epsom salt is a naturally occurring mineral and is found chiefly in Surrey of England.

3. Usage Of Salt

Rock salt is mainly used for cooking purposes and adds flavors to your food. On the other side, Epsom salt has medicinal uses and is often used to relieve pains and aches. Epsom salt is also used in bathing water as the skin absorbs the salt to relieve many skin problems.

4. Medicinal Values

Rock salt does not have any medicinal value, but Epsom salt helps in your body’s detoxification. The important mineral present in Epsom salt is Magnesium which helps heal problems like body aches and pains.

5. Edible

Even though rock salt has some impurities, it is edible and used in cooking. On the other hand, Epsom salt is not edible, and it is not true salt.

6. Used For Natural Relaxation

Both the salts can be used for relaxing your body. The salts are used in Spa to make your body relax. But Epsom salt is more effective than Rock Salt when coming to medicinal usage.

7. Healing Powers

Rock salt is used to prepare antiseptic solutions, but beyond this, Epsom salt has a wide range of first aid benefits. Epsom salt can reduce swellings around the wounds and is an excellent treatment for joint injury or sprained ankle.

8. Ice Removal

Rock salt is the principal compound used to remove ice and snow from the pathways and walkways in the winter season. Salt lowers the freezing point of ice, thereby melting the ice and making it easy for ice removal. On the other hand, Epsom salt cannot be used for ice or snow removal due to its chemical combination.


Overall it can be seen that Epsom salt and Rocksalt are not comparable as they are having different chemical combinations and uses. Rock Salt and Epsom salt have their uses, and you need to buy the pure forms of salt to enjoy their full benefits. Canada Salt is the supplier of pure road salt and Epsom salt. Contact us for a free estimate.

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