So, to recap so far we have had beryllium at 10 and carbon at 9, so
now onto the element in at number 8…barium. Although it’s name might not be the
most striking, keep on reading because this element has a colourful past (the
pun will make sense by the time you’ve finished reading!)
(In case you can’t quite remember the
scoring system for the rankings just click here)
RANKING:
8
ELEMENT
NAME AND SYMBOL:
Barium
(Ba)
RELATIVE
SUPPLY RISK INDEX:
8.1
WHY?:
Barium is not found
independently on Earth, it has to be isolated from minerals, the most common
one used being barite (BaSO4). Again, China holds the majority of
the world’s barite supply, and so it risks include being held at a political ransom.
LEADING
PRODUCER:
China
TOP RESERVE HOLDER:
China
WHY
THE DEMAND?:
The coolest use of barium
has to be that it is the pigment which gives green fireworks their colour! Aside from that
it is also used for its colouring in paints and ceramics.
It is also added to some
metal alloys because it refines their structures, as well as being used in
taking X-rays on the gastrointestinal tract. The mineral barite is used in gas
and oil as a drilling fluid, and therefore is very much in demand in this
industry.
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