One of the most used flavoring agents in the world is nothing other than salt. Salt is used for a very wide variety of purposes, such as for adding some flavoring to the food, boosting the flavor of other agents, and acting as a preservative. While in the Chemistry subject the term ‘salt’ may refer to a bunch of substances, the ‘salt’ in our daily life refers to a specific type of salt formed of sodium and chlorine.
However, even the salt that is familiar to us come in several variants. For example, rock salt and sea salt are two kinds of salt products that often encounter. So, what are the differences between rock salt and sea salt?
Rock salt, known also as halite, is a type of salt that is found in a solid, rocky form and then mined. It usually forms isometric crystals. The color of rock salt is typically white or translucent. However, natural rock salt can be also purple, blue, red, pink, yellow, orange, or gray, depending on the amount and type of impurities. Due to its physicality, it is more difficult to solve in water. Rock salt is used, besides in cooking and curing, for melting ice, especially on sidewalks, driveways, and roads after a snow storm.
Seawater is well-known to contain salt. When seawater is evaporated, the residue is salt minerals, which are then called as sea salt. Sea salt also varies because of the impurities in the seawater, making the sea salt from one area differ from the sea salt of another area. However, sea salt is usually white and somewhat softer. As the effect, it can dissolve more easily in water.
Rock Salt vs Sea Salt
|Rock Salt||Sea Salt|
|- Acquired by mining a solid salt deposit||- Acquired by evaporating seawater|
|- Comes as isometric crystals that are large and coarse||- Comes as crystals that are somewhat softer in texture|
|- The color can be translucent, white, purple, blue, red, pink, orange, yellow, or gray||- The color is generally white|
|- Slightly more difficult to dissolve in water||- Relatively easier to dissolve in water|
So, despite the similar looks, rock salt and sea salt are different. Rock salt is acquired by mining solid salt deposit and may vary in color. Rock salt also takes more time to dissolve in water. Meanwhile, sea salt is obtained from the seawater, hence the name. Sea salt is white and easier to dissolve.