Symbol: Sr Atomic No: 38Strontium
Importance in Man of Strontium
Salts used therapeutically in osteoporosis
Web Resources for Strontium
Relevant Clinical Literature
Element, in the same period of the table as Calcium, and unsurprisingly strongly incorporated into bone.
This gives two effects.
- Sr90 is a long-lived fission product and if it is bound into bone provides a persisting radiation exposure of some considerable significance.
- Stable Strontium is presented as a treatment for osteoporosis, as strontium ranelate. Since Sr is a notably heavier nucleus than Calcium the density and capability to stop photons of the bone is significantly increased by merely replacing atoms (up to 10% may be achieved) of Calcium with Strontium - regardless of any consequent increase in strength or increase in Calcium content. Bone densitometry methods must be adjusted for this.