POTASSIUM

HISTORY

• When:1807.
• Where:England, and London.
• Who:Sir Humphrey Davy.

HISTORY

• When was it used for then? Was mixed with animal fat to make soap.
• Person or civilization? Person.
• One person or different guys working together? One person.
• Different places/countries? Different places.

NAME, ORIGIN, LANGUAGE, SYMBOL

• Potassium
• "Potash" "qali".
• English, Mediaeval Latin, Arabic.
• K

SOURCES

• What countries? Canada, Russia, Belarus, Germany, Isreal, Jordan.
• It is mined.

HOW IT IS PROCESSED

• The ore is crushed, cleaned, and further processed to seperate the potash from impurities such as clay.
• At other mines water is injected into the potash seam.
• Then potash dissolves in the water creating potash brine.
• Then pumped to the surface and evaporated by sunlight in shallow ponds.
• AFter the water evaporates the potassium chloride crystals are harvested, and processed into granular fertilizers products.

RESCOURCES

• Abundant
• 2.1% of the earth's crust.
• 1.6% by moles

PROPERTIES

• Looks physical state, how it is found-ore.
• Melt pt. 336.53K
• Boil pt. 1032K
• Density-0.89 grams per cubic centimeter.

PROPERTIES

• What elements/compounds does it react with?
• Oxygen, moisture from the air, water.

PROPERTIES THAT MAY MAKE THIS ELEMENT UNIQUE?

• Metal that tarnishes within minutes.
• It reacts with water violently and releases hydrogen gas.
• It will melt over a flame of a candle because the melting pt. of it is very low for a metal.
• It reacts readily with all acids and with all non-metals.
• It weighs less than water, so it floats on water.

PROPERTIES

• It make it unique because most metals take a while to tarnish but this does not take
• a long time does it within minutes.
• Do some of these properties help explain why ancient civilizations used it? No
• What is this element worth? Pure-$100 per 100g, bulk-$65 per 100g.

E- SHELL ARRANGEMENT OF POTASSIUM

USES

• Potassium compounds are in fertilizers.
• In water, it reacts rapidly and often explosively to release hydrogen,
• which burns with lilac flame.

VIDEO OF POTASSIUM