Re: Halogens F,Cl,Br,I...

Again from Dr. Jarvis

http://www.jcrows.com/iodine.html

"Now while the thyroid gland helpfully stores Iodine from the blood passing through it every 17 minutes, the gland may also be made to lose that stored Iodine if, for example, we take in drinking water to which chlorine is added, or use too much sodium chloride, whose common name is table salt . There is a well-known law of halogen displacement. The halogen group is made up as follows:
Relative
Halogen Atomic Weight
Fluorine 19.
Chlorine 35.5
Bromine 80.
Iodine 127.

The critical activity of any one of these four halogens is in inverse proportion to its atomic weight. This means that any one of the four can displace the element with a higher atomic weight, but cannot displace an element with a lower atomic weight. For example, fluorine can displace chlorine, bromine and Iodine because fluorine has a lower atomic weight than the other three. Similarly, chlorine can displace bromine and iodine because they both have a higher atomic weight. Likewise, bromine can displace iodine from the body because iodine has a higher atomic weight. But a reverse order is not possible. A knowledge of this well-known chemical law brings us to a consideration of the addition of chlorine to our drinking water as a purifying agent. We secure a drinking water that is harmful to the body not because of its harmful germ content but because the chlorine content now causes the body to lose the much-needed iodine."

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