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Iodine - Universal Medicine Iodine for health - 'Universal Medicine'

Iodine - "The Universal Medicine"

Chemical forms of Iodine

iodine (I2)

 I2 - elemental form has two iodine atoms covalently bonded (ie sharing an electron); aka molecular or granular iodine.

Oxidant - since it is missing an electron in its outer valance shell, it readily accepts an electron to become an iodide ion. Potable water disinfectant treatments have a long history using concentrations of 2-7 mg/L (ppm); added to water, it hydrolyses  to form iodide and hypoiodous acid (HIO) -  an oxidant with an oxidizing potential of .987 V,  almost twice that of iodine at .535V);  it is most effective as a disinfectant when pH is near neutral to mildly alkaline (pH 7 – 7.5)  - i.e. blood pH.

I2 + H2O ↔ HIO + I- + H+   (in the ph 2-7 range)

 WHO Document on water sanitation Link

Oceans are the main source of I2 - bonds easily with water, which travels to the sea, so there is not so much in the soil;

Kills single-celled microbes (bacteria, virus, fungi, protozoa) - mechanism debated

-  By oxidation - at sufficient concentration

-   May also work by reacting with tyrosine in microbial membrane

Rarely found in nature,


Iodide (I-)

iodide is the negatively charged Iodine ion (I-)  - since it can so easily accept or donate an electron, the iodine ion (I-) is found bound with other elements, such as sodium, potassium, oxygen, hydrogen or carbon to form inorganic salts, or with organic compounds such as the mammalian hormone thyroxine

Antioxidant - iodide is an electron donor;

Iodide is quickly and almost completely absorbed in the stomach and duodenum

Triiodine (I3-)

Form of iodine in Lugol's Solution

Elemental iodine is added to a potassium iodide solution to make it soluble - elemental iodine is not very water soluble on its own, but combining it with an aqueous solution of potassium iodide forms triiodide ion (three iodine atoms in linear configuration having an overall negative charge), which is completely soluble in water;

KI (aq) + I2(s) --> KI3-(aq)



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