Strontium Facts

Strontium Facts
Strontium (Sr) has an atomic number of thirty-eight. This yellowish metallic element is very volatile and its salts are often used in pyrotechnics due to their brilliantly colored flames.
Interesting Strontium Facts:
Strontium was first declared to exist in the strontianite mineral in 1790 by Adair Crawford.
Crawford referred to strontium extracted from the ore mined near the Scottish town of Strontian as "a new species of earth."
In 1808, Sir Humphry Davy isolated the element strontium from the strontianite.
Strontianite is now known to be strontium carbonite.
While originally a silvery white color, strontium turns yellow when exposed to air.
Strontium is an alkaline earth metal that is even softer than calcium.
When combined with water, strontium reacts immediately to give off hydrogen gas and strontium hydroxied.
Because of the way it reacts with air and water, strontium only exists in nature when combined to form minerals.
Naturally occurring strontium is stable, but its synthetic isotope Sr-90 is only produced by nuclear fallout.
Sr-90 has a half-life of less than thirty years.
Strontium has four stable isotopes which occur in nature.
There are sixteen known unstable isotopes of strontium.
As many as 150,000 tons of strontium were used per year leading up to World War I.
It was used then to produce sugar from the sugar beet plant.
Most of the strontium used in the process of making sugar was recyclable.
The aritifical radioactive isotope Sr-89 is used to treat bone cancer.
Strontium is the fifteenth most common element in the Earth's crust in mineral or compound form.
Strontium is found at around 360 part per million in the Earth's crust.
China has typically been the top producer of strontium, along with Spain, Mexico, and several other countries.
Around 300,000 tons of strontium are produced globally each year.
Strontium's dominant use is currently in the production of television cathode tubes, where it prevents the emission of X-rays.

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