The use of salt, marine and / or recrystallized, affects almost all industrial sectors.
Some examples are:
- textile industry
- chemical sector
- paper sector
- construction sector
- pharmaceutical sector
Salt is used as a fixative for different types of dyes. Direct dyes are a kind of dye made up with sulphonic acids of sodium salt which are applied in neutral solutions. They are directly applied to the cellulose fiber without using a mordant. To transfer the balance of the dye from the bath to the substrate, electrolytes such as sodium chloride and sodium sulfate are used. As far as skins and leather are concerned, a specific salt is used for preservation, preventing the formation of susceptible bacteria from ruining them.
The mostly affected sectors by the use of salt are:
- electrolysis of sodium chloride
- production of sodium carbonate
- production of sodium sulphate
As the electrolysis of sodium chloride regards , it allows to obtain chlorine from soda. This is mainly used to produce plastic raw materials such as PVC, but also to develop solvents and disinfection products, such as bleach.
Soda is an intermediate chemical product and it is also used to manufacture artificial textile fibers, pulp and alumina.
Calcium carbonate is used as a reagent in the chemical industry, mainly in the glass industry. Its production involves two raw materials: sodium chloride and sodium carbonate with an intermediary: ammonia.
Sodium sulfate is used in the paper industry, in glass industry and in detergents, and as an agent for manufacturing other chemical products. This product is obtained in furnaces where crystallized sodium chloride is mixed with sulfuric acid at a temperature of + 550 ° C.
Sodium hydroxide (or caustic soda) is an intermediate chemical product used for artificial textile fibers, paper pulp, aluminum oxide production.
Sodium chlorate is used as a herbicide, as a bleaching agent and in some explosive’s manufacture .
Sodium metal instead has important outlets in organic chemistry as a synthetic agent and in the nuclear industry, as a fluid to transport heat
OTHER INDUSTRIAL USES:
- Stoneware and ceramic painting
- Construction of roadways
- Safety of explosives
- Solar basins
- Ingredient of cosmetic products
- As a bacteriostatic as it blocks the proliferation of bacteria, fermentation and putrefaction.
- In the production of chemicals and detergents.
- In the pharmaceutical and cosmetic industry.
- As an anti-dust to be used on dirt roads or forecourts of road companies.
- As a herbicide.
- In the production of bricks
- In the production of adhesive resins.
- In aluminum refineries, it lowers the melting point, exerts a strong degassing action and eliminates oxide films.
- In glassworks as it lowers the melting temperature of the sand.
- In baking the clay to increase its impermeability.
- In metal welding.
- In the refining of precious metals.
- As a raw material to obtain all products that contain chlorine and sodium.