Calcium 45

Name:
Calcium 45
Detailed information:
Radioactive calcium of mass number 45.

Properties:

Half-life 164 days; emits β-radiation.

Derivation:

By reactor irradiation of calcium carbonate, by neutron bombardment of scandium, or as a by-product of the irradiation of calcium nitrate for the preparation of 14C.

Available forms:

Calcium chloride in hydrochloric acid solution and solid calcium carbonate.

Hazard:

Dangerous radiation hazard, MPC in air 3 × 10−8 µCi/mL. This isotope is a bone seeker and may cause damage to the blood-forming organs.

Use:

Research aid for studying water purification, calcium exchange in clays, detergency, surface wetting and other surface phenomena, calcium uptake and deposition in bone, soilcharacteristics as related to soil utilization of fertilizer and crop yield, diffusion of calcium in glass, etc.