Video: "Salt...The Essence of Life"

1. The early caravans carried salt.
2. Salt was deposited by evaporation in shallow seas, and the salt was then buried beneath sediments.
3. Salt is mined in Gulf Coast mines of Louisiana by drilling and blasting.
4. Salt is produced in San Francisco Bay by solar evaporation of bay water.
5. Salt brine is evaporated under pressure with added heat. Solar evaporation involves the sun and wind.
6. The Via Salaria was a Roman road used to transport salt to Rome from the Mediterranean Sea.
7. Animals need sad to grow and reproduce at optimum rates.
8. Farmers use salt to feed livestock and poultry needed trace minerals, as well as, medications to regulate feed intake and to entice their cattle to move from pasture to pasture.
9. Salt provides the sodium ion to water conditioners which exchange the "soft" sodium ion for "hard" calcium and magnesium ions, thus saving plumbing, producing better cleaning results, improving soap lathering, and making hair cleaner.
10. Two chemicals made from salt are chlorine (Cl2) and caustic soda (NaOH).
11. Products made from salt are chlorine, soaps, paper, detergents, plastics and rubber.
12. Salt is used in dying fabrics to produce better yields from dyes and better appearance of the fabric.
13. Salt is used in canning and in frozen foods to enhance taste, color, and as a preservative.
14. Sad provides safe roads by destroying the ice/pavement bond that deprives cars of traction.
15. Salt has 14,000 uses.
16. Saline solution restores blood volume and saves lives during emergencies.
17. Potassium iodide or iodate is added to prevent iodine deficiency disorders such as goiter, mental retardation and cretinism.
18. If we did not have salt in our bodies, we would die.

Unit 1: Salt Secrets

1. higher temperature, thus reducing cooking time
2. peel easier
3. retain their color
4. crisp
5. smother the flames
6. rub tarnish with salt before washing
7. salting area and scouring with a cloth soaked in vinegar
8. rubbing fingers with salt moistened with vinegar
9. rubbing stains with salt
10. wrapping it in a cloth dampened with saltwater before refrigerating

1. mixing equal parts of salt, flour and vinegar to make a paste, nub the paste on the brass item, leave on for an hour or so, then clean with a soft cloth or brush and buff with a dry cloth
2. mixing a solution of one part salt and four parts alcohol and rubbing hard
3. soaking in hot saltwater before its first use
4. rubbing a thin paste of salad oil and salt on the spot with your fingers, let stand for an hour and wipe off
5. sprinkling salt on a piece of paper and running the hot iron over it to remove rough, sticky spots

Unit 2: Properties of Sodium Chloride

1. ½ teaspoon of salt in an 8 ounce glass of warm water
2. one part pulverized salt to two parts baking soda
3. warm water to which a handful of salt has been added
4. wet the spot and cover with salt to relieve the pain exposed part in hot saltwater

1. soaking new candles in a strong salt solution for a few hours, then drying them well
2. occasionally throwing a handful of salt on the flames in your fireplace
3. rub deposit with salt, or put a strong salt solution in the vase and shake, then wash with soap and water
4. dash of salt to the water in a flower vase
5. lightly sprinkling rock salt on them

* Do not confuse elemental chlorine (Cl atom) with Cl ₂ (gas).   Elemental chlorine does not exist free in nature, but occurs as a chloride combined with cations as in NaCl,CaCl ₂, MgCl ₂, KCl, etc.

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