STRONTIUM AND RHENIUM

STRONTIUM

• Physical Properties- Soft, silver-yellow, alkaline-earth metal.
• Name- Strontium
• Symbol- Sr
• Physical state- Solid
• Color- Silvery

HISTORY

• Adair Crawford and William Cruickshank
• 1790
• Scotland

USES

• Strontium is best known for the brilliant reds its salts give to fireworks and flares.
• It is also used in producing ferrite magnets and refining zinc.

RHENIUM

RHENIUM

• Physical properties- Ductile, malleable, silvery metal
• Name- Rhenium
• Symbol- Re
• Physical state- Solid
• Color- Silver

HISTORY

• Walter Noddack, Ida Tacke, and Otto Berg
• 1925
• Germany

USES

• The metal is used in alloys for jet engines and in tungsten and molybdenum based alloys
• It is widely used as filaments for mass spectrographs.