What Is Solar Salt?

Are you curious to know what is solar salt? You have come to the right place as I am going to tell you everything about solar salt in a very simple explanation. Without further discussion let’s begin to know what is solar salt?

What Is Solar Salt?

Salt is one of the most essential and widely used minerals in the world, with applications ranging from seasoning our food to keeping our roads safe in icy conditions. But have you ever wondered how salt is produced on such a massive scale? Solar salt, a fascinating and eco-friendly method of salt production, harnesses the power of the sun to create this everyday necessity. In this blog, we will explore what solar salt is, how it’s produced, and its various applications.

The Solar Salt Production Process

Solar salt, as the name suggests, is produced through the natural process of solar evaporation. This eco-friendly and cost-effective method relies on the sun’s energy to extract salt from seawater or brine. The production process typically occurs in shallow, man-made salt ponds and goes through several stages:

  1. Collection: Seawater or brine is collected in large, shallow ponds, often referred to as salterns or salt pans. These ponds are specially designed to maximize solar exposure.
  2. Evaporation: As the sun shines on the ponds, the heat causes the water to evaporate, leaving behind salt crystals. Wind and warm temperatures play a crucial role in this process.
  3. Crystallization: As the water evaporates, salt crystals start to form and grow. These crystals settle at the bottom of the pond.
  4. Harvesting: Once the salt crystals reach a certain size and density, they are harvested. This is typically done by using heavy machinery to scrape the salt from the pond’s surface.
  5. Washing and Drying: The harvested salt is washed with brine to remove impurities. It is then spread out to dry in the sun.
  6. Packaging: After drying, the salt is packaged and distributed for various uses.

Applications Of Solar Salt

Solar salt has a wide range of applications across various industries, owing to its purity and natural production process:

  1. Table Salt: Refined solar salt is commonly used as table salt for seasoning food. It is preferred by many for its purity and lack of additives.
  2. Industrial Use: Solar salt is widely used in various industries, including the chemical industry for manufacturing chemicals such as chlorine, soda ash, and caustic soda.
  3. Water Softening: Solar salt’s high purity and low cost make it a popular choice for water softeners in households and commercial settings.
  4. Deicing: Coarse solar salt is used for deicing purposes. It helps melt ice and snow on roads, sidewalks, and driveways, making them safer during winter.
  5. Agriculture: Solar salt is used in agriculture to improve soil quality, and it is often employed in the curing and preservation of animal hides.
  6. Swimming Pools: Solar salt is used to maintain the water quality in swimming pools, as it helps balance the water’s pH and prevents algae growth.

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Eco-Friendly And Sustainable

One of the key advantages of solar salt production is its eco-friendliness. The process relies on natural solar energy and does not involve the use of fossil fuels or other non-renewable resources. Additionally, it uses seawater, which is a renewable resource, making it a sustainable method of salt production.


Solar salt, produced through the environmentally friendly process of solar evaporation, is a vital and versatile mineral that plays a significant role in our daily lives. Whether you’re enjoying a meal seasoned with table salt, driving on deiced roads during winter, or benefitting from its various industrial applications, solar salt is a behind-the-scenes hero that showcases the harmony of nature and industry in producing essential resources.


What Is The Difference Between Solar Salt And Regular Salt?

The purity of solar salt is always going to be higher than that of rock salt. Solar salt purity is going to typically be greater than 99.5% sodium chloride. Evaporation is a more expensive process than just digging the salt directly out of the ground. Solar salt is always going to be more expensive than rock salt.

What Does Solar Salt Do?

Solar salt crystals can be used in water softeners to transform hard water into soft water. They are a naturally white, opaque, high purity salt. Using solar salt in your softener can help minimize the accumulation of brine tank residue—helping to keep the water softener clean and trouble-free.

What Is The Difference Between Solar Salt And Water Softener Salt?

Solar salt has a lower solubility level than evaporated salt. Many available brands have 99.6% or above salt contents. However, its insoluble level is around 0.03%, which means it may cause problems like insoluble buildup and a salt bridge, which will need to be cleaned.

Is Morton Salt Solar Salt?

Morton® White Crystal® Solar Salt is harvested, dried and screened for commercial use. White crystal solar salt is available in medium, coarse and extra coarse grades.

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