Crude salt can stimulate and promote the secretion of sebaceous glands, help to expel aging substances from the body, remove the dead cortex on the surface, and make the skin look brand-new.

1, crude salt has the function of sweating, it can discharge waste and excess water in the body, promote skin metabolism, soften dirt and supplement salt and minerals;

2, used to clean the wound can prevent infection;

3. Sprinkling on food can keep fresh for a short time and can be used to preserve food and prevent deterioration.

Raw salt is the crystallization of sea water or brine in salt wells, salt ponds and salt springs after frying, that is, natural salt, which is unprocessed large-grain salt. The main component is sodium chloride, but it is easy to deliquesce in the air because of impurities such as magnesium chloride, so pay attention to humidity when storing.

Extended data:

Salt can be divided into single salt and double salt. Single salt has normal salt, acid salt and alkaline salt, and double salt has double salt and double salt.

Among them, acid salts contain hydrogen ions in addition to metal ions and acid ions, and basic salts also contain hydroxide ions in addition to metal ions and acid ions. The compound salt can be dissolved in water, and can generate the same combined salt as the original salt ion. When the double salt is dissolved in water, a double salt complex with complex ions different from the original salt can be formed.

Insoluble salts are usually solids under standard conditions, but there are exceptions, such as molten salts and ionic liquids. Soluble salt solution and molten salt are conductive, so they can be used as electrolytes. There are many different salts in cytoplasm, blood, urine and mineral water.

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