information about salt:
Salt is a mineral composed primarily of sodium chloride (NaCl). salt in its natural form as a crystalline mineral is known as rock salt or halite. The open ocean has about 35 grams (1.2 oz) of solids per liter of sea water.
- Salt is essential for life in general, and saltiness is one of the basic human tastes.
- Salt is one of the oldest and most ubiquitous food seasonings.
- salting is an important method of food preservation.
other information of salt:
- Some of the earliest evidence of salt processing dates to around 6,000 BC, when people living in the area of present-day Romania boiled spring water to extract salts
- a salt-works in China dates to approximately the same period.
- The scarcity and universal need for salt have led nations to go to war over it and use it to raise tax revenues.
salt process:
Its major industrial products are caustic soda and chlorine:
- manufacture of polyvinyl chloride
- plastics
- paper pulp
- and many other products.
Other uses include water conditioning processes, road de-icing , and agricultural use. Edible salt is sold in forms such as sea salt and table salt which usually contains an anti-caking agent and may be iodized to prevent iodine deficiency. As well as its use in cooking and at the table, salt is present in many processed foods.
Sodium is an essential nutrient for human health via its role as an electrolyte and osmotic solute. Excessive salt consumption may increase the risk of cardiovascular diseases, such as hypertension, in children and adults. Such health effects of salt have long been studied. Accordingly, numerous world health associations and experts in developed countries recommend reducing consumption of popular salty foods. The World Health Organization recommends that adults should consume less than 2,000 mg of sodium, equivalent to 5 grams of salt per day
