Write about common salt is essential for our life.
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Sodium Chloride- Essential for Life
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Sodium Chloride is quite essential for life. Biologically, it has a number of functions to perform such as in muscle contraction, in conduction of nerve impulses in nervous system and is also converted into hydrochloric acid which helps in the digestion of food in stomach. When we sweat, there is loss of sodium chloride along with water. It leads two muscle cramps. Its loss has to be compensated suitably by giving certain solved preparations to the patient. Electral power is an important substitute of common salt.
The important of common salt
In its mineral form sodium chloride, NaCl, is known as common salt. It is important because it is essential to the health of human beings and of animals. For domestic use it is fined down to what is known as table-salt, and small quantities of other chemicals are added to it to keep it free-flowing when in contact with the atmosphere.
Salt and potassium are combined to produce iodised salt, used when iodine is lacking in diet. It s absence causes goitre, the swelling of the thyroid gland.
Livestock as well as humans need salt, and this provided in the form of solid blocks, known as 'salt-licks'.
Salt is also crucial to the food industry. It is used in meatpacking sausage-making and fish-curing both for seasoning and as a preservative. It is also used in the curing and preserving of hides and in the form of brine of brine for refrigeration purposes.
Salt is extensively used in the chemical industry; in the manufacture of baking soda, sodium bicarbonate; of caustic soda, sodium hydroxide; of hydrochloric acid, of chlorine etc. It is also used in soap-making, and in the manufacture of glaze and porcelain enamel. It also enters metallurgic processes as flux, a compound used to assist the fusing of metals.
Salt lowers the melting point of water, so in combination with grit, it is used for clearing roads of snow and ice. It is also used for water-softening by means of removing calcium and magnesium compounds from tap water.