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Facts about Potassium

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Facts about Potassium. Potassium is a soft, highly reactive metallic element, it ... Oranges. Tomato Juice. Honeydew. Molasses. Potatoes. More health facts ... – PowerPoint PPT presentation

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Title: Facts about Potassium


1

2
Facts about Potassium
  • Potassium is a soft, highly reactive metallic
    element, it occurs only in nature as compounds.
  • Potassium was formerly called Kalium, which
    explains the symbol K
  • Potassium is an electrolyte, which conducts an
    electric current when placed in a solvent.

3
The History of Potassium
  • Potassium was discovered by Sir Humphry Davy of
    London in 1807.
  • It is the seventh most abundant metal and the
    least dense known metal besides Lithium.

4
  • Potassium is one of the most electropositive and
    reactive metals we know of, and will catch fire
    when reacting with water.

5
Properties of Potassium
  • Potassium is a soft, silvery white metal that can
    be cut easily with a knife.
  • Because potassium quickly oxidizes in air, it
    needs to be kept in mineral oil.
  • In reaction with water, it decomposes to form
    hydrogen.
  • Potassium forms a violet flame when caught on
    fire.
  • Potassium is obtained by electrolysis of
    Hydroxide and is never found in nature.

6
Uses of Potassium
  • The main demand for using potassium is in
    fertilizers and is used in most soils.
  • Potassium is vital for plant growth and
    development as well as human diets.
  • It plays a very important role in the response to
    stimulating nerves of the body and also in the
    contraction of muscles.
  • Potassium is also used to make soaps, glass,
    lenses, salt substitutes, and potassium nitrate
    is used for the coloring of fireworks and
    explosives.

7
Health Facts
  • Potassium is needed for body growth and
    maintenance.
  • Eating foods rich in potassium will help to lower
    the risk of high blood pressure.
  • Potassium in your body helps strenghten arteries,
    helps with damage of blood vessels and helps
    heart to function properly.

8
Foods With A High Source of Potassium
  • Bananas
  • Cantaloupe
  • Grapefruit
  • Prunes
  • Oranges
  • Tomato Juice
  • Honeydew
  • Molasses
  • Potatoes

9
More health facts
  • Potassium is a necessary dietary mineral.
  • It is recommended that you should eat a potassium
    rich fruit or vegetable every day. This reduces
    the risk of a heart stroke by 40.
  • If there is excessive loss of potassium in your
    body, it will cause you to get Hypokalemia, which
    can cause heart failure.
  • The average person consumes about 7 grams of
    potassium per day and the average body stores up
    to 140 grams, mainly stored in the muscles.

10
Sources
  • http//www.americanheart.org/presenter.jhtml?ident
    ifier4680
  • http//www.answers.com/topic/potassium?cathealth
  • http//environmentalchemistry.com/yogi/periodic/K.
    html
  • http//periodic.lanl.gov/elements/19.html
  • http//sciencespot.net/
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