It resembles calcium in its metabolism and behavior. The radioactively stable form has low toxicity. Ignites spontaneously in air. Moderately explosive in the form of dust when exposed to flame or by spontaneous chemical reaction. Reacts vigorously with water or steam to evolve hydrogen. Reaction with halogens may lead to ignition. Can be stored under liquid hydrocarbons. Vigorous reaction on contact with oxidizing materials. Highly dangerous in the form of the radioactive isotopes
90Sr. See also
STRONTIUM COMPOUNDS and
POWDERED METALS.