LYCOS RETRIEVER 
Strontium: Water
built 651 days ago
Strontium chromate is a light yellow powder or granular solid. It is insoluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used as a pigment, a protective coating against corrosion, and in pyrotechnics.
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Strontium is a soft, silver-yellow, alkaline-earth metal. It has three allotropic crystalline forms and in its physical and chemical properties it is similar to calcium and barium. Strontium reacts vigorously with water and quickly tarnishes in air, so it must be stored out of contact with air and water. Due to its extreme reactivity to air, this element always naturally occurs combined with other elements and compounds. Finely powdered strontium metal will ignite spontaneously in air to produce both strontium oxide and strontium nitride.
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Strontium is widely distributed throughout nature. Strontium levels in the soil determine how much strontium will be in the foods grown in particular areas. Areas with strontium-rich soils ... tend to have higher levels of strontium in the drinking water.
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Strontium is a mineral naturally present in food, water and in trace amounts in bones and teeth and should not be confused with the radioactive isotope strontium-90. It's chemically similar to calcium and is metabolized in the body in a nearly identical way.
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Strontium in its elemental form occurs naturally in many compartments of the environment, including rocks, soil, water, and air. Strontium compounds can move through the environment fairly easily, because many of the compounds are water-soluble.
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Strontium can be removed with strong acid cation exchange resin. It can be in sodium form as in a water softener or the hydrogen form as in the cation portion of a two-column deionizer. Reverse osmosis will ... reduce strontium but as stated above strontium sulfate is a membrane foulant.
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