4. Name
name is derived from the Spanish
term platina,
which is literally translated into "little silver"
5. Platinum
Platinum is period 6 in the Periodic Table
It belongs to group 3, column 10 in the
Periodic Table , d-block
It is a transition metal
6. Where is Platinum found?
It is one of the rarer elements in Earth's crust with
an average abundance of approximately 5 μg/kg
only a few hundred tonnes are produced annually.
Most often the native platinum is found in
secondary deposits in alluvial deposits.
However, it is found mixed in with some other
metals such as “gold, nickel, and copper”.
It can also be found in the countries of
South Africa, Russia, Canada, USA
7.
8. What are the Uses and value of
Platinum?
Platinum is used in jewelry, car engines,
electronics, glass, and spark plugs
The price of platinum, like other industrial
commodities, is more volatile than that of gold. In
2008 ,the price of platinum dropped from $2,252
to $774 per oz, a loss of nearly 2/3 of its value. By
contrast, the price of gold dropped from ~$1,000 to
~$700/oz during the same time frame, a loss of
only 1/3 of its value.
9. Uses
Archaeologists have discovered traces of
platinum in the gold used in ancient Egyptian tombs
and hieroglyphics as early as 1200 BC.
245 tonnes of platinum sold in 2010, 113 tonnes
were used for vehicle emissions control devices
(46%), 76 tonnes for jewelry (31%). The remaining
35.5 tonnes went to various other minor
applications, such as investment, electrodes,
anticancer drugs, oxygen sensors, spark plugs and
turbine engines.
10.
11. the Crown of Queen Elizabeth the Queen
Mother, manufactured for her coronation as
Consort of King George VI, is made of platinum
13. Health issues
According to the Centers for Disease Control
and Prevention, short-term exposure to
platinum salts may cause irritation of the
eyes, nose, and throat, and long-term
exposure may cause both respiratory and skin
allergies
مشاكل صحية :
وفقا لمراكز السيطرة على الأمراض والوقاية منها، والتعرض على المدى القصير للأملاح البلاتين قد يسبب تهيج العينين والأنف، والحلق، ويمكن أن يسبب التعرض الطويل الأجل على حد سواء الحساسية في الجهاز التنفسي والجلد