Strontium [Sr] (CAS-ID: 7440-24-6) locate me
An: 38 N: 50 Am: 87.62
Group No: 2  Group Name: Alkaline earth metal
Block: s-block  Period: 5
State: solid at 298 K
Colour: silvery white Classification: Metallic
Boiling Point: 1655K (1382'C)
Melting Point: 1050K (777'C)
Density: 2.64g/cm3
Shell Structure diagram | Atomic Radius diagram
Isotopes | More Info
Discovery Information
Who: A. Crawford
When: 1790
Where: Scotland
Name Origin
From Strontian a small Scottish town.
Sources
Found in minerals celestite and strontianite.
Uses
Used in flares and fireworks for its crimson colour. Also used in nuclear batteries in buoys, some toothpastes, magnets, zinc refining and phosphorescent paint.
Notes
Strontium was first isolated by Sir Humphry Davy in 1808.
In its pure form strontium is extremely reactive with air and spontaneously combusts, it is therefore considered to be a fire hazard.
Images
Strontium burning with a brilliant crimson colour Strontium burning with a brilliant crimson colour