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WHAT IS SALT ?

Facts about Salt

Place a piece of the soft metal sodium on water.  There is a huge reaction while the surface sizzles and pops.  After the sodium disappears and has therefore formed a compound, you are left with highly poisonous caustic soda.

 

Chlorine is a suffocating yellowy green gas.  The small amounts released by chlorine pellets in our swimming pools, is enough to keep the water germ free. But in bigger concentrations, chlorine is a horror.  Only 0.058 % per volume in the atmosphere is enough to kill a human being within minutes.

 

But bring sodium and chlorine together in the laboratory. This product looks familiar.  Taste it.  Now it is harmless.  When the deadly sodium and chlorine compounded, they formed a mineral which is in daily use in our homes: ordinary salt.  Just as water consists of the gasses Oxygen and Hydrogen, salt consists of a poisonous metal and a poisonous gas.

 

Since time immemorial this salt (sodium chloride) has been man’s most valuable and sought-after edible mineral.  Not only is it vital for the human diet, but also essential in the production of almost all chemical products on the market.

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   Ons is die sout van die aarde.    
neels
June 04, 2014 01:50:33 PM
   Very interesting   
Cathy
December 11, 2012 01:31:46 PM

IODINE

Why do we add iodine to our salt?

The main source of iodine is the sea and therefore seafood such as fish, shellfish and edible seaweed is an excellent source of iodine.  Iodine is also found in small amounts in our drinking water.  In areas where seafood is not available and where iodised salt is not used, the iodine intake is determined by the iodine content of the soil.   Iodine shortages are normally found in mountainous areas. 

 

A shortage of iodine in the diet can lead to goitres, or enlarged thyroid.  If the thyroid   enlarges too much, it can hamper breathing and swallowing.  A shortage of iodine can also lead to cretinism and retarded physical growth.  The most critical time a human being needs iodine is in the fetal stage and for young children.

 

The human body needs 120-140 micrograms of iodine per day.  Salt producers in South Africa are obliged by law to add 20-40 milligrams iodine per kilogram of salt.

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